52257500 has 30 divisors (see below), whose sum is σ = 114282168. Its totient is φ = 20902000.

The previous prime is 52257479. The next prime is 52257509. The reversal of 52257500 is 575225.

It is a self number, because there is not a number n which added to its sum of digits gives 52257500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52257509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7952 + ... + 12951.

Almost surely, 2^52257500 is an apocalyptic number.

52257500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52257500 is an abundant number, since it is smaller than the sum of its proper divisors (62024668).

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

52257500 is a wasteful number, since it uses less digits than its factorization.

52257500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20927 (or 20910 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 52257500 is about 7228.9349146330. The cubic root of 52257500 is about 373.8662051088.

The spelling of 52257500 in words is "fifty-two million, two hundred fifty-seven thousand, five hundred".