53213904 has 60 divisors (see below), whose sum is σ = 155409696. Its totient is φ = 16965696.

The previous prime is 53213891. The next prime is 53213911. The reversal of 53213904 is 40931235.

It is a congruent number.

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, 4722 + ... + 11345.

Almost surely, 2^53213904 is an apocalyptic number.

It is an amenable number.

53213904 is an abundant number, since it is smaller than the sum of its proper divisors (102195792).

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

53213904 is a wasteful number, since it uses less digits than its factorization.

53213904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16104 (or 16095 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 53213904 is about 7294.7860832241. The cubic root of 53213904 is about 376.1332333031.

The spelling of 53213904 in words is "fifty-three million, two hundred thirteen thousand, nine hundred four".