56431005 has 16 divisors (see below), whose sum is σ = 93202944. Its totient is φ = 29125440.

The previous prime is 56430991. The next prime is 56431009. The reversal of 56431005 is 50013465.

It is not a de Polignac number, because 56431005 - 2⁴ = 56430989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56431009) 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, 60214 + ... + 61143.

It is an arithmetic number, because the mean of its divisors is an integer number (5825184).

Almost surely, 2^56431005 is an apocalyptic number.

It is an amenable number.

56431005 is a deficient number, since it is larger than the sum of its proper divisors (36771939).

56431005 is a wasteful number, since it uses less digits than its factorization.

56431005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121396.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 56431005 is about 7512.0573080881. The cubic root of 56431005 is about 383.5652564197.

The spelling of 56431005 in words is "fifty-six million, four hundred thirty-one thousand, five".