56481072 has 80 divisors (see below), whose sum is σ = 162668160. Its totient is φ = 16782336.

The previous prime is 56481041. The next prime is 56481083. The reversal of 56481072 is 27018465.

It is a super-2 number, since 2×56481072² = 6380222988538368, which contains 22 as substring.

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, 13683 + ... + 17325.

It is an arithmetic number, because the mean of its divisors is an integer number (2033352).

Almost surely, 2^56481072 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 56481072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81334080).

56481072 is an abundant number, since it is smaller than the sum of its proper divisors (106187088).

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

56481072 is a wasteful number, since it uses less digits than its factorization.

56481072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 56481072 is about 7515.3890118875. The cubic root of 56481072 is about 383.6786591202.

The spelling of 56481072 in words is "fifty-six million, four hundred eighty-one thousand, seventy-two".