252509212044 has 72 divisors (see below), whose sum is σ = 644823658752. Its totient is φ = 83308646880.

The previous prime is 252509211967. The next prime is 252509212073. The reversal of 252509212044 is 440212905252.

252509212044 is a `hidden beast` number, since 2 + 525 + 0 + 9 + 2 + 120 + 4 + 4 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7439857 + ... + 7473719.

Almost surely, 2^252509212044 is an apocalyptic number.

It is an amenable number.

252509212044 is an abundant number, since it is smaller than the sum of its proper divisors (392314446708).

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

252509212044 is a wasteful number, since it uses less digits than its factorization.

252509212044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35987 (or 35982 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 252509212044 in words is "two hundred fifty-two billion, five hundred nine million, two hundred twelve thousand, forty-four".