252633456261 has 24 divisors (see below), whose sum is σ = 377635441664. Its totient is φ = 162578702880.

The previous prime is 252633456253. The next prime is 252633456293. The reversal of 252633456261 is 162654336252.

252633456261 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 334 + 56 + 261 = 666.

It is not a de Polignac number, because 252633456261 - 2³ = 252633456253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252633454261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1029661 + ... + 1251186.

Almost surely, 2^252633456261 is an apocalyptic number.

It is an amenable number.

252633456261 is a deficient number, since it is larger than the sum of its proper divisors (125001985403).

252633456261 is a wasteful number, since it uses less digits than its factorization.

252633456261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281281 (or 2281278 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 252633456261 in words is "two hundred fifty-two billion, six hundred thirty-three million, four hundred fifty-six thousand, two hundred sixty-one".