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2557558083025 = 521118115135401
BaseRepresentation
bin100101001101111010010…
…101110100110111010001
3100001111111121202010121101
4211031322111310313101
5313400334332124100
65234532001424401
7352530450004561
oct45157225646721
910044447663541
102557558083025
118a6721953a40
1235380903b101
1315723b26842a
148bb02114da1
15467dbcac86a
hex2537a574dd1

2557558083025 has 24 divisors (see below), whose sum is σ = 3461589613728. Its totient is φ = 1859014800000.

The previous prime is 2557558082993. The next prime is 2557558083053. The reversal of 2557558083025 is 5203808557552.

It is a happy number.

It is not a de Polignac number, because 2557558083025 - 25 = 2557558082993 is a prime.

It is a super-2 number, since 2×25575580830252 (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2069676 + ... + 3065725.

It is an arithmetic number, because the mean of its divisors is an integer number (144232900572).

Almost surely, 22557558083025 is an apocalyptic number.

2557558083025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2557558083025 is a deficient number, since it is larger than the sum of its proper divisors (904031530703).

2557558083025 is a wasteful number, since it uses less digits than its factorization.

2557558083025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5137233 (or 5137228 counting only the distinct ones).

The product of its (nonzero) digits is 16800000, while the sum is 55.

The spelling of 2557558083025 in words is "two trillion, five hundred fifty-seven billion, five hundred fifty-eight million, eighty-three thousand, twenty-five".

Divisors: 1 5 11 25 55 275 1811 9055 19921 45275 99605 498025 5135401 25677005 56489411 128385025 282447055 1412235275 9300211211 46501056055 102302323321 232505280275 511511616605 2557558083025