252557499325 has 6 divisors (see below), whose sum is σ = 313171299194. Its totient is φ = 202045999440.

The previous prime is 252557499307. The next prime is 252557499349. The reversal of 252557499325 is 523994755252.

It can be written as a sum of positive squares in 3 ways, for example, as 76961301561 + 175596197764 = 277419^2 + 419042^2 .

It is not a de Polignac number, because 252557499325 - 2³⁷ = 115118545853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252557499325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5051149962 + ... + 5051150011.

Almost surely, 2^252557499325 is an apocalyptic number.

252557499325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252557499325 is a deficient number, since it is larger than the sum of its proper divisors (60613799869).

252557499325 is a wasteful number, since it uses less digits than its factorization.

252557499325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102299983 (or 10102299978 counting only the distinct ones).

The product of its digits is 34020000, while the sum is 58.

The spelling of 252557499325 in words is "two hundred fifty-two billion, five hundred fifty-seven million, four hundred ninety-nine thousand, three hundred twenty-five".