52904390 has 64 divisors (see below), whose sum is σ = 119881728. Its totient is φ = 16329600.

The previous prime is 52904377. The next prime is 52904407. The reversal of 52904390 is 9340925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97520 + ... + 98060.

It is an arithmetic number, because the mean of its divisors is an integer number (1873152).

Almost surely, 2^52904390 is an apocalyptic number.

52904390 is an abundant number, since it is smaller than the sum of its proper divisors (66977338).

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

52904390 is a wasteful number, since it uses less digits than its factorization.

52904390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 52904390 is about 7273.5404034074. The cubic root of 52904390 is about 375.4025662051.

The spelling of 52904390 in words is "fifty-two million, nine hundred four thousand, three hundred ninety".