52569645520 has 40 divisors (see below), whose sum is σ = 139685059584. Its totient is φ = 18023878272.

The previous prime is 52569645511. The next prime is 52569645523. The reversal of 52569645520 is 2554696525.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52569645523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46936624 + ... + 46937743.

Almost surely, 2^52569645520 is an apocalyptic number.

It is an amenable number.

52569645520 is an abundant number, since it is smaller than the sum of its proper divisors (87115414064).

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

52569645520 is a wasteful number, since it uses less digits than its factorization.

52569645520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93874387 (or 93874381 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 52569645520 in words is "fifty-two billion, five hundred sixty-nine million, six hundred forty-five thousand, five hundred twenty".