52257566 has 8 divisors (see below), whose sum is σ = 78501864. Its totient is φ = 26090280.

The previous prime is 52257563. The next prime is 52257593. The reversal of 52257566 is 66575225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52257563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17525 + ... + 20288.

It is an arithmetic number, because the mean of its divisors is an integer number (9812733).

Almost surely, 2^52257566 is an apocalyptic number.

52257566 is a deficient number, since it is larger than the sum of its proper divisors (26244298).

52257566 is a wasteful number, since it uses less digits than its factorization.

52257566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38506.

The product of its digits is 126000, while the sum is 38.

The square root of 52257566 is about 7228.9394796194. The cubic root of 52257566 is about 373.8663625035.

The spelling of 52257566 in words is "fifty-two million, two hundred fifty-seven thousand, five hundred sixty-six".