252661554456 has 64 divisors (see below), whose sum is σ = 645596179200. Its totient is φ = 82376976000.

The previous prime is 252661554437. The next prime is 252661554463. The reversal of 252661554456 is 654455166252.

It is a super-2 number, since 2×252661554456² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252661554399 and 252661554408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220020 + ... + 744131.

It is an arithmetic number, because the mean of its divisors is an integer number (10087440300).

Almost surely, 2^252661554456 is an apocalyptic number.

It is an amenable number.

252661554456 is an abundant number, since it is smaller than the sum of its proper divisors (392934624744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252661554456 is a wasteful number, since it uses less digits than its factorization.

252661554456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964400 (or 964396 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 51.

The spelling of 252661554456 in words is "two hundred fifty-two billion, six hundred sixty-one million, five hundred fifty-four thousand, four hundred fifty-six".