252577255720 has 16 divisors (see below), whose sum is σ = 568298825460. Its totient is φ = 101030902272.

The previous prime is 252577255717. The next prime is 252577255751. The reversal of 252577255720 is 27552775252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 252548461764 + 28793956 = 502542^2 + 5366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3157215657 + ... + 3157215736.

Almost surely, 2^252577255720 is an apocalyptic number.

252577255720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252577255720 is an abundant number, since it is smaller than the sum of its proper divisors (315721569740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252577255720 is a wasteful number, since it uses less digits than its factorization.

252577255720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314431404 (or 6314431400 counting only the distinct ones).

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

The spelling of 252577255720 in words is "two hundred fifty-two billion, five hundred seventy-seven million, two hundred fifty-five thousand, seven hundred twenty".