52257456 has 60 divisors (see below), whose sum is σ = 154858392. Its totient is φ = 16393728.

The previous prime is 52257451. The next prime is 52257479. The reversal of 52257456 is 65475225.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 52257456.

It is not an unprimeable number, because it can be changed into a prime (52257451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8226 + ... + 13121.

Almost surely, 2^52257456 is an apocalyptic number.

It is an amenable number.

52257456 is an abundant number, since it is smaller than the sum of its proper divisors (102600936).

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

52257456 is a wasteful number, since it uses less digits than its factorization.

52257456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21378 (or 21369 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 52257456 is about 7228.9318713071. The cubic root of 52257456 is about 373.8661001789.

The spelling of 52257456 in words is "fifty-two million, two hundred fifty-seven thousand, four hundred fifty-six".