56261172 has 48 divisors (see below), whose sum is σ = 144849600. Its totient is φ = 16853760.

The previous prime is 56261167. The next prime is 56261203. The reversal of 56261172 is 27116265.

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, 9354 + ... + 14142.

It is an arithmetic number, because the mean of its divisors is an integer number (3017700).

Almost surely, 2^56261172 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 56261172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72424800).

56261172 is an abundant number, since it is smaller than the sum of its proper divisors (88588428).

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

56261172 is a wasteful number, since it uses less digits than its factorization.

56261172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896 (or 4894 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 56261172 is about 7500.7447630219. The cubic root of 56261172 is about 383.1800810627.

The spelling of 56261172 in words is "fifty-six million, two hundred sixty-one thousand, one hundred seventy-two".