57997216 has 24 divisors (see below), whose sum is σ = 118121220. Its totient is φ = 27998208.

The previous prime is 57997189. The next prime is 57997223. The reversal of 57997216 is 61279975.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57820816 + 176400 = 7604^2 + 420^2 .

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, 30321 + ... + 32176.

Almost surely, 2^57997216 is an apocalyptic number.

It is an amenable number.

57997216 is an abundant number, since it is smaller than the sum of its proper divisors (60124004).

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

57997216 is a wasteful number, since it uses less digits than its factorization.

57997216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62536 (or 62528 counting only the distinct ones).

The product of its digits is 238140, while the sum is 46.

The square root of 57997216 is about 7615.5903251160. The cubic root of 57997216 is about 387.0814705611.

The spelling of 57997216 in words is "fifty-seven million, nine hundred ninety-seven thousand, two hundred sixteen".