252638875260 has 60 divisors (see below), whose sum is σ = 792537513768. Its totient is φ = 67370366304.

The previous prime is 252638875213. The next prime is 252638875273. The reversal of 252638875260 is 62578836252.

It is a happy number.

252638875260 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 38 + 87 + 526 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 252638875197 and 252638875206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 77973342 + ... + 77976581.

Almost surely, 2^252638875260 is an apocalyptic number.

252638875260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252638875260 is an abundant number, since it is smaller than the sum of its proper divisors (539898638508).

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

252638875260 is a wasteful number, since it uses less digits than its factorization.

252638875260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155949944 (or 155949933 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 252638875260 in words is "two hundred fifty-two billion, six hundred thirty-eight million, eight hundred seventy-five thousand, two hundred sixty".