56142972 has 18 divisors (see below), whose sum is σ = 141917048. Its totient is φ = 18714312.

The previous prime is 56142937. The next prime is 56142973. The reversal of 56142972 is 27924165.

56142972 is a `hidden beast` number, since 561 + 4 + 2 + 97 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1559527 = 56142972 / (5 + 6 + 1 + 4 + 2 + 9 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56142973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 779728 + ... + 779799.

Almost surely, 2^56142972 is an apocalyptic number.

It is an amenable number.

56142972 is an abundant number, since it is smaller than the sum of its proper divisors (85774076).

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

56142972 is a wasteful number, since it uses less digits than its factorization.

56142972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559537 (or 1559532 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 56142972 is about 7492.8614026952. The cubic root of 56142972 is about 382.9115498585.

The spelling of 56142972 in words is "fifty-six million, one hundred forty-two thousand, nine hundred seventy-two".