252232405551 has 12 divisors (see below), whose sum is σ = 416383653712. Its totient is φ = 144132803136.

The previous prime is 252232405549. The next prime is 252232405631. The reversal of 252232405551 is 155504232252.

252232405551 is a `hidden beast` number, since 2 + 522 + 32 + 4 + 0 + 55 + 51 = 666.

It is not a de Polignac number, because 252232405551 - 2¹ = 252232405549 is a prime.

It is a super-2 number, since 2×252232405551² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252232405501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2001844426 + ... + 2001844551.

Almost surely, 2^252232405551 is an apocalyptic number.

252232405551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

252232405551 is a deficient number, since it is larger than the sum of its proper divisors (164151248161).

252232405551 is a wasteful number, since it uses less digits than its factorization.

252232405551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003688990 (or 4003688987 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 252232405551 in words is "two hundred fifty-two billion, two hundred thirty-two million, four hundred five thousand, five hundred fifty-one".