252777502525 has 12 divisors (see below), whose sum is σ = 313705126324. Its totient is φ = 202053600000.

The previous prime is 252777502493. The next prime is 252777502547. The reversal of 252777502525 is 525205777252.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 76429578681 + 176347923844 = 276459^2 + 419938^2 .

It is not a de Polignac number, because 252777502525 - 2⁵ = 252777502493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4179426 + ... + 4239475.

Almost surely, 2^252777502525 is an apocalyptic number.

252777502525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252777502525 is a deficient number, since it is larger than the sum of its proper divisors (60927623799).

252777502525 is a wasteful number, since it uses less digits than its factorization.

252777502525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420112 (or 8420107 counting only the distinct ones).

The product of its (nonzero) digits is 3430000, while the sum is 49.

The spelling of 252777502525 in words is "two hundred fifty-two billion, seven hundred seventy-seven million, five hundred two thousand, five hundred twenty-five".