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2552552525 = 52149685249
BaseRepresentation
bin1001100000100100…
…1101110001001101
320120220002002210102
42120021031301031
520211423140100
61101142020445
7120153224045
oct23011156115
96526062712
102552552525
11109a938546
125b2a17725
13318a9c613
141a3010725
15ee15bcd5
hex9824dc4d

2552552525 has 12 divisors (see below), whose sum is σ = 3186412500. Its totient is φ = 2028334080.

The previous prime is 2552552521. The next prime is 2552552551. The reversal of 2552552525 is 5252552552.

It can be written as a sum of positive squares in 6 ways, for example, as 6240004 + 2546312521 = 2498^2 + 50461^2 .

It is not a de Polignac number, because 2552552525 - 22 = 2552552521 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2552552521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338900 + ... + 346349.

It is an arithmetic number, because the mean of its divisors is an integer number (265534375).

Almost surely, 22552552525 is an apocalyptic number.

2552552525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2552552525 is a deficient number, since it is larger than the sum of its proper divisors (633859975).

2552552525 is a wasteful number, since it uses less digits than its factorization.

2552552525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685408 (or 685403 counting only the distinct ones).

The product of its digits is 250000, while the sum is 38.

The square root of 2552552525 is about 50522.7921338479. The cubic root of 2552552525 is about 1366.6529060350.

The spelling of 2552552525 in words is "two billion, five hundred fifty-two million, five hundred fifty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 149 745 3725 685249 3426245 17131225 102102101 510510505 2552552525