52408920 has 32 divisors (see below), whose sum is σ = 157227120. Its totient is φ = 13975680.

The previous prime is 52408913. The next prime is 52408949. The reversal of 52408920 is 2980425.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 218251 + ... + 218490.

Almost surely, 2^52408920 is an apocalyptic number.

It is an amenable number.

52408920 is an abundant number, since it is smaller than the sum of its proper divisors (104818200).

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

52408920 is a wasteful number, since it uses less digits than its factorization.

52408920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436755 (or 436751 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 52408920 is about 7239.4005276680. The cubic root of 52408920 is about 374.2269586249.

The spelling of 52408920 in words is "fifty-two million, four hundred eight thousand, nine hundred twenty".