252502387 has 4 divisors (see below), whose sum is σ = 252541296. Its totient is φ = 252463480.

The previous prime is 252502373. The next prime is 252502399. The reversal of 252502387 is 783205252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252502387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252502687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7108 + ... + 23569.

It is an arithmetic number, because the mean of its divisors is an integer number (63135324).

Almost surely, 2^252502387 is an apocalyptic number.

252502387 is a deficient number, since it is larger than the sum of its proper divisors (38909).

252502387 is an equidigital number, since it uses as much as digits as its factorization.

252502387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38908.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 252502387 is about 15890.3236908504. The cubic root of 252502387 is about 632.0554241238.

The spelling of 252502387 in words is "two hundred fifty-two million, five hundred two thousand, three hundred eighty-seven".