56472542040 has 128 divisors (see below), whose sum is σ = 175106900160. Its totient is φ = 14558828544.

The previous prime is 56472541991. The next prime is 56472542053. The reversal of 56472542040 is 4024527465.

It is a self number, because there is not a number n which added to its sum of digits gives 56472542040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 656574 + ... + 737586.

Almost surely, 2^56472542040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56472542040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87553450080).

56472542040 is an abundant number, since it is smaller than the sum of its proper divisors (118634358120).

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

56472542040 is a wasteful number, since it uses less digits than its factorization.

56472542040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81221 (or 81217 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 39.

The spelling of 56472542040 in words is "fifty-six billion, four hundred seventy-two million, five hundred forty-two thousand, forty".