56670278 has 16 divisors (see below), whose sum is σ = 97542144. Its totient is φ = 24189000.

The previous prime is 56670277. The next prime is 56670287. The reversal of 56670278 is 87207665.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56670277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4550 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (6096384).

Almost surely, 2^56670278 is an apocalyptic number.

56670278 is a deficient number, since it is larger than the sum of its proper divisors (40871866).

56670278 is a wasteful number, since it uses less digits than its factorization.

56670278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16387.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 56670278 is about 7527.9663920610. The cubic root of 56670278 is about 384.1066101198.

The spelling of 56670278 in words is "fifty-six million, six hundred seventy thousand, two hundred seventy-eight".