57078872 has 8 divisors (see below), whose sum is σ = 107022900. Its totient is φ = 28539432.

The previous prime is 57078871. The next prime is 57078881. The reversal of 57078872 is 27887075.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57078871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3567422 + ... + 3567437.

Almost surely, 2^57078872 is an apocalyptic number.

It is an amenable number.

57078872 is a deficient number, since it is larger than the sum of its proper divisors (49944028).

57078872 is a wasteful number, since it uses less digits than its factorization.

57078872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134865 (or 7134861 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 57078872 is about 7555.0560553844. The cubic root of 57078872 is about 385.0275394929.

The spelling of 57078872 in words is "fifty-seven million, seventy-eight thousand, eight hundred seventy-two".