56574140 has 48 divisors (see below), whose sum is σ = 137156544. Its totient is φ = 19200000.

The previous prime is 56574139. The next prime is 56574169. The reversal of 56574140 is 4147565.

It is a junction number, because it is equal to n+sod(n) for n = 56574097 and 56574106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12140 + ... + 16140.

It is an arithmetic number, because the mean of its divisors is an integer number (2857428).

Almost surely, 2^56574140 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 56574140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68578272).

56574140 is an abundant number, since it is smaller than the sum of its proper divisors (80582404).

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

56574140 is a wasteful number, since it uses less digits than its factorization.

56574140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118 (or 4116 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 56574140 is about 7521.5782918215. The cubic root of 56574140 is about 383.8892819543.

The spelling of 56574140 in words is "fifty-six million, five hundred seventy-four thousand, one hundred forty".