56501078 has 4 divisors (see below), whose sum is σ = 84751620. Its totient is φ = 28250538.

The previous prime is 56501069. The next prime is 56501099. The reversal of 56501078 is 87010565.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14125268 + ... + 14125271.

It is an arithmetic number, because the mean of its divisors is an integer number (21187905).

Almost surely, 2^56501078 is an apocalyptic number.

56501078 is a deficient number, since it is larger than the sum of its proper divisors (28250542).

56501078 is a wasteful number, since it uses less digits than its factorization.

56501078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28250541.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 56501078 is about 7516.7198963378. The cubic root of 56501078 is about 383.7239543485.

The spelling of 56501078 in words is "fifty-six million, five hundred one thousand, seventy-eight".