252255351645 has 96 divisors (see below), whose sum is σ = 505297802880. Its totient is φ = 115129797120.

The previous prime is 252255351637. The next prime is 252255351703. The reversal of 252255351645 is 546153552252.

252255351645 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 553 + 51 + 6 + 45 = 666.

It is not a de Polignac number, because 252255351645 - 2³ = 252255351637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 252255351645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1391167 + ... + 1562003.

It is an arithmetic number, because the mean of its divisors is an integer number (5263518780).

Almost surely, 2^252255351645 is an apocalyptic number.

It is an amenable number.

252255351645 is an abundant number, since it is smaller than the sum of its proper divisors (253042451235).

252255351645 is a wasteful number, since it uses less digits than its factorization.

252255351645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171035 (or 171032 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The spelling of 252255351645 in words is "two hundred fifty-two billion, two hundred fifty-five million, three hundred fifty-one thousand, six hundred forty-five".