52257960 has 120 divisors (see below), whose sum is σ = 177038730. Its totient is φ = 13825728.

The previous prime is 52257941. The next prime is 52257967. The reversal of 52257960 is 6975225.

52257960 is a `hidden beast` number, since 5 + 22 + 579 + 60 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47032164 + 5225796 = 6858^2 + 2286^2 .

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (52257967) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 411417 + ... + 411543.

Almost surely, 2^52257960 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 52257960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88519365).

52257960 is an abundant number, since it is smaller than the sum of its proper divisors (124780770).

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

52257960 is a wasteful number, since it uses less digits than its factorization.

52257960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 52257960 is about 7228.9667311449. The cubic root of 52257960 is about 373.8673020993.

The spelling of 52257960 in words is "fifty-two million, two hundred fifty-seven thousand, nine hundred sixty".