56407870 has 32 divisors (see below), whose sum is σ = 107892000. Its totient is φ = 21159936.

The previous prime is 56407829. The next prime is 56407909. The reversal of 56407870 is 7870465.

It is a happy number.

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, 75961 + ... + 76699.

It is an arithmetic number, because the mean of its divisors is an integer number (3371625).

Almost surely, 2^56407870 is an apocalyptic number.

56407870 is a deficient number, since it is larger than the sum of its proper divisors (51484130).

56407870 is a wasteful number, since it uses less digits than its factorization.

56407870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 56407870 is about 7510.5172924373. The cubic root of 56407870 is about 383.5128325489.

The spelling of 56407870 in words is "fifty-six million, four hundred seven thousand, eight hundred seventy".