56243388 has 48 divisors (see below), whose sum is σ = 134701056. Its totient is φ = 18258240.

The previous prime is 56243359. The next prime is 56243389. The reversal of 56243388 is 88334265.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56243389) 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, 121245 + ... + 121707.

It is an arithmetic number, because the mean of its divisors is an integer number (2806272).

Almost surely, 2^56243388 is an apocalyptic number.

It is an amenable number.

56243388 is an abundant number, since it is smaller than the sum of its proper divisors (78457668).

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

56243388 is a wasteful number, since it uses less digits than its factorization.

56243388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 712 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 56243388 is about 7499.5591870456. The cubic root of 56243388 is about 383.1397027553.

The spelling of 56243388 in words is "fifty-six million, two hundred forty-three thousand, three hundred eighty-eight".