57272412 has 24 divisors (see below), whose sum is σ = 135828112. Its totient is φ = 18777600.

The previous prime is 57272387. The next prime is 57272437. The reversal of 57272412 is 21427275.

It is an interprime number because it is at equal distance from previous prime (57272387) and next prime (57272437).

It is a self number, because there is not a number n which added to its sum of digits gives 57272412.

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, 38389 + ... + 39852.

Almost surely, 2^57272412 is an apocalyptic number.

It is an amenable number.

57272412 is an abundant number, since it is smaller than the sum of its proper divisors (78555700).

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

57272412 is a wasteful number, since it uses less digits than its factorization.

57272412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78309 (or 78307 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 57272412 is about 7567.8538569399. The cubic root of 57272412 is about 385.4622255191.

Adding to 57272412 its reverse (21427275), we get a palindrome (78699687).

The spelling of 57272412 in words is "fifty-seven million, two hundred seventy-two thousand, four hundred twelve".