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2557608875 = 5320460871
BaseRepresentation
bin1001100001110010…
…0000001110101011
320121020120222210122
42120130200032223
520214221441000
61101442233455
7120244213433
oct23034401653
96536528718
102557608875
1110a2781448
125b465588b
13319b4cc43
141a39692c3
15ee80a085
hex987203ab

2557608875 has 8 divisors (see below), whose sum is σ = 3191896032. Its totient is φ = 2046087000.

The previous prime is 2557608871. The next prime is 2557608883. The reversal of 2557608875 is 5788067552.

It is not a de Polignac number, because 2557608875 - 22 = 2557608871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557608871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10230311 + ... + 10230560.

It is an arithmetic number, because the mean of its divisors is an integer number (398987004).

Almost surely, 22557608875 is an apocalyptic number.

2557608875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2557608875 is a deficient number, since it is larger than the sum of its proper divisors (634287157).

2557608875 is an equidigital number, since it uses as much as digits as its factorization.

2557608875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20460886 (or 20460876 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 53.

The square root of 2557608875 is about 50572.8076638029. The cubic root of 2557608875 is about 1367.5547115173.

The spelling of 2557608875 in words is "two billion, five hundred fifty-seven million, six hundred eight thousand, eight hundred seventy-five".

Divisors: 1 5 25 125 20460871 102304355 511521775 2557608875