252396551 has 32 divisors (see below), whose sum is σ = 299220480. Its totient is φ = 210470400.

The previous prime is 252396539. The next prime is 252396553. The reversal of 252396551 is 155693252.

It is a cyclic number.

It is not a de Polignac number, because 252396551 - 2¹⁰ = 252395527 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252396553) 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, 1083131 + ... + 1083363.

It is an arithmetic number, because the mean of its divisors is an integer number (9350640).

Almost surely, 2^252396551 is an apocalyptic number.

252396551 is a deficient number, since it is larger than the sum of its proper divisors (46823929).

252396551 is a wasteful number, since it uses less digits than its factorization.

252396551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its digits is 81000, while the sum is 38.

The square root of 252396551 is about 15886.9931390430. The cubic root of 252396551 is about 631.9671034191.

The spelling of 252396551 in words is "two hundred fifty-two million, three hundred ninety-six thousand, five hundred fifty-one".