56878455 has 16 divisors (see below), whose sum is σ = 92289024. Its totient is φ = 29907360.

The previous prime is 56878441. The next prime is 56878477. The reversal of 56878455 is 55487865.

It is not a de Polignac number, because 56878455 - 2⁶ = 56878391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25639 + ... + 27768.

It is an arithmetic number, because the mean of its divisors is an integer number (5768064).

Almost surely, 2^56878455 is an apocalyptic number.

56878455 is a deficient number, since it is larger than the sum of its proper divisors (35410569).

56878455 is a wasteful number, since it uses less digits than its factorization.

56878455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53486.

The product of its digits is 1344000, while the sum is 48.

The square root of 56878455 is about 7541.7806252900. The cubic root of 56878455 is about 384.5763710530.

The spelling of 56878455 in words is "fifty-six million, eight hundred seventy-eight thousand, four hundred fifty-five".