56297736 has 96 divisors (see below), whose sum is σ = 171774720. Its totient is φ = 16502400.

The previous prime is 56297723. The next prime is 56297749. The reversal of 56297736 is 63779265.

It is an interprime number because it is at equal distance from previous prime (56297723) and next prime (56297749).

It is a junction number, because it is equal to n+sod(n) for n = 56297691 and 56297700.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23406 + ... + 25698.

It is an arithmetic number, because the mean of its divisors is an integer number (1789320).

Almost surely, 2^56297736 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 56297736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85887360).

56297736 is an abundant number, since it is smaller than the sum of its proper divisors (115476984).

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

56297736 is a wasteful number, since it uses less digits than its factorization.

56297736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347 (or 2340 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 56297736 is about 7503.1817251084. The cubic root of 56297736 is about 383.2630723569.

It can be divided in two parts, 56 and 297736, that added together give a palindrome (297792).

The spelling of 56297736 in words is "fifty-six million, two hundred ninety-seven thousand, seven hundred thirty-six".