56431146 has 16 divisors (see below), whose sum is σ = 113004000. Its totient is φ = 18786768.

The previous prime is 56431139. The next prime is 56431147. The reversal of 56431146 is 64113465.

It is not an unprimeable number, because it can be changed into a prime (56431147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321 + ... + 10628.

It is an arithmetic number, because the mean of its divisors is an integer number (7062750).

Almost surely, 2^56431146 is an apocalyptic number.

56431146 is an abundant number, since it is smaller than the sum of its proper divisors (56572854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56431146 is a wasteful number, since it uses less digits than its factorization.

56431146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11813.

The product of its digits is 8640, while the sum is 30.

The square root of 56431146 is about 7512.0666929947. The cubic root of 56431146 is about 383.5655758816.

It can be divided in two parts, 5643114 and 6, that added together give a triangular number (5643120 = T₃₃₅₉).

The spelling of 56431146 in words is "fifty-six million, four hundred thirty-one thousand, one hundred forty-six".