56878157 has 16 divisors (see below), whose sum is σ = 66232320. Its totient is φ = 47840112.

The previous prime is 56878147. The next prime is 56878163. The reversal of 56878157 is 75187865.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 56878157 - 2¹⁶ = 56812621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56878127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129344 + ... + 129782.

It is an arithmetic number, because the mean of its divisors is an integer number (4139520).

Almost surely, 2^56878157 is an apocalyptic number.

It is an amenable number.

56878157 is a deficient number, since it is larger than the sum of its proper divisors (9354163).

56878157 is a wasteful number, since it uses less digits than its factorization.

56878157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its digits is 470400, while the sum is 47.

The square root of 56878157 is about 7541.7608686566. The cubic root of 56878157 is about 384.5756994223.

The spelling of 56878157 in words is "fifty-six million, eight hundred seventy-eight thousand, one hundred fifty-seven".