56173406 has 32 divisors (see below), whose sum is σ = 96344640. Its totient is φ = 24403456.

The previous prime is 56173399. The next prime is 56173409. The reversal of 56173406 is 60437165.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56173409) 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, 21440 + ... + 23916.

It is an arithmetic number, because the mean of its divisors is an integer number (3010770).

Almost surely, 2^56173406 is an apocalyptic number.

56173406 is a deficient number, since it is larger than the sum of its proper divisors (40171234).

56173406 is a wasteful number, since it uses less digits than its factorization.

56173406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 56173406 is about 7494.8919938849. The cubic root of 56173406 is about 382.9807269648.

The spelling of 56173406 in words is "fifty-six million, one hundred seventy-three thousand, four hundred six".