56770072 has 32 divisors (see below), whose sum is σ = 117612000. Its totient is φ = 25552384.

The previous prime is 56770067. The next prime is 56770073. The reversal of 56770072 is 27007765.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56770073) 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, 5947 + ... + 12202.

It is an arithmetic number, because the mean of its divisors is an integer number (3675375).

Almost surely, 2^56770072 is an apocalyptic number.

It is an amenable number.

56770072 is an abundant number, since it is smaller than the sum of its proper divisors (60841928).

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

56770072 is a wasteful number, since it uses less digits than its factorization.

56770072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18195 (or 18191 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 56770072 is about 7534.5916943123. The cubic root of 56770072 is about 384.3319431533.

The spelling of 56770072 in words is "fifty-six million, seven hundred seventy thousand, seventy-two".