52257736464 has 40 divisors (see below), whose sum is σ = 135087981792. Its totient is φ = 17407783680.

The previous prime is 52257736411. The next prime is 52257736541. The reversal of 52257736464 is 46463775225.

It is a super-4 number, since 4×52257736464⁴ (a number of 44 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284317 + ... + 430524.

Almost surely, 2^52257736464 is an apocalyptic number.

It is an amenable number.

52257736464 is an abundant number, since it is smaller than the sum of its proper divisors (82830245328).

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

52257736464 is a wasteful number, since it uses less digits than its factorization.

52257736464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716375 (or 716369 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 51.

The spelling of 52257736464 in words is "fifty-two billion, two hundred fifty-seven million, seven hundred thirty-six thousand, four hundred sixty-four".