53213968 has 20 divisors (see below), whose sum is σ = 103353628. Its totient is φ = 26542080.

The previous prime is 53213957. The next prime is 53213977. The reversal of 53213968 is 86931235.

It can be written as a sum of positive squares in 2 ways, for example, as 20358144 + 32855824 = 4512^2 + 5732^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088 + ... + 10768.

Almost surely, 2^53213968 is an apocalyptic number.

It is an amenable number.

53213968 is a deficient number, since it is larger than the sum of its proper divisors (50139660).

53213968 is a wasteful number, since it uses less digits than its factorization.

53213968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122 (or 8116 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 53213968 is about 7294.7904699176. The cubic root of 53213968 is about 376.1333840940.

The spelling of 53213968 in words is "fifty-three million, two hundred thirteen thousand, nine hundred sixty-eight".