52507157004 has 36 divisors (see below), whose sum is σ = 132797685384. Its totient is φ = 17492988672.

The previous prime is 52507156997. The next prime is 52507157057. The reversal of 52507157004 is 40075170525.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 52507157004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323397 + ... + 457820.

It is an arithmetic number, because the mean of its divisors is an integer number (3688824594).

Almost surely, 2^52507157004 is an apocalyptic number.

It is an amenable number.

52507157004 is an abundant number, since it is smaller than the sum of its proper divisors (80290528380).

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

52507157004 is a wasteful number, since it uses less digits than its factorization.

52507157004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783094 (or 783089 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The spelling of 52507157004 in words is "fifty-two billion, five hundred seven million, one hundred fifty-seven thousand, four".