56297868 has 48 divisors (see below), whose sum is σ = 147189504. Its totient is φ = 16597440.

The previous prime is 56297861. The next prime is 56297873. The reversal of 56297868 is 86879265.

It is a self number, because there is not a number n which added to its sum of digits gives 56297868.

It is not an unprimeable number, because it can be changed into a prime (56297861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880 + ... + 10647.

It is an arithmetic number, because the mean of its divisors is an integer number (3066448).

Almost surely, 2^56297868 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 56297868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73594752).

56297868 is an abundant number, since it is smaller than the sum of its proper divisors (90891636).

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

56297868 is a wasteful number, since it uses less digits than its factorization.

56297868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582 (or 11580 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 56297868 is about 7503.1905213716. The cubic root of 56297868 is about 383.2633718993.

The spelling of 56297868 in words is "fifty-six million, two hundred ninety-seven thousand, eight hundred sixty-eight".