252813561075 has 54 divisors (see below), whose sum is σ = 469660989252. Its totient is φ = 134812998000.

The previous prime is 252813561071. The next prime is 252813561089. The reversal of 252813561075 is 570165318252.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

252813561075 is a `hidden beast` number, since 2 + 5 + 2 + 8 + 13 + 561 + 0 + 75 = 666.

It is not a de Polignac number, because 252813561075 - 2² = 252813561071 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 252813561075.

It is not an unprimeable number, because it can be changed into a prime (252813561071) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 39186600 + ... + 39193050.

Almost surely, 2^252813561075 is an apocalyptic number.

252813561075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

252813561075 is a deficient number, since it is larger than the sum of its proper divisors (216847428177).

252813561075 is an frugal number, since it uses more digits than its factorization.

252813561075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12927 (or 6459 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 252813561075 in words is "two hundred fifty-two billion, eight hundred thirteen million, five hundred sixty-one thousand, seventy-five".