252356204565 has 32 divisors (see below), whose sum is σ = 449453554560. Its totient is φ = 134343885312.

The previous prime is 252356204563. The next prime is 252356204609. The reversal of 252356204565 is 565402653252.

252356204565 is a `hidden beast` number, since 2 + 5 + 23 + 5 + 62 + 0 + 4 + 565 = 666.

It is not a de Polignac number, because 252356204565 - 2¹ = 252356204563 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 252356204565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252356204561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1634844 + ... + 1782533.

It is an arithmetic number, because the mean of its divisors is an integer number (14045423580).

Almost surely, 2^252356204565 is an apocalyptic number.

It is an amenable number.

252356204565 is a deficient number, since it is larger than the sum of its proper divisors (197097349995).

252356204565 is a wasteful number, since it uses less digits than its factorization.

252356204565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417938 (or 3417932 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

The spelling of 252356204565 in words is "two hundred fifty-two billion, three hundred fifty-six million, two hundred four thousand, five hundred sixty-five".