52257516 has 24 divisors (see below), whose sum is σ = 123076800. Its totient is φ = 17255952.

The previous prime is 52257511. The next prime is 52257553. The reversal of 52257516 is 61575225.

It is not an unprimeable number, because it can be changed into a prime (52257511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19066 + ... + 21633.

It is an arithmetic number, because the mean of its divisors is an integer number (5128200).

Almost surely, 2^52257516 is an apocalyptic number.

It is an amenable number.

52257516 is an abundant number, since it is smaller than the sum of its proper divisors (70819284).

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

52257516 is a wasteful number, since it uses less digits than its factorization.

52257516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40813 (or 40811 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 52257516 is about 7228.9360212966. The cubic root of 52257516 is about 373.8662432651.

The spelling of 52257516 in words is "fifty-two million, two hundred fifty-seven thousand, five hundred sixteen".