53912500 has 72 divisors (see below), whose sum is σ = 124679520. Its totient is φ = 20340000.

The previous prime is 53912477. The next prime is 53912513. The reversal of 53912500 is 521935.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237387 + ... + 237613.

It is an arithmetic number, because the mean of its divisors is an integer number (1731660).

Almost surely, 2^53912500 is an apocalyptic number.

53912500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53912500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62339760).

53912500 is an abundant number, since it is smaller than the sum of its proper divisors (70767020).

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

53912500 is a wasteful number, since it uses less digits than its factorization.

53912500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 53912500 is about 7342.5131937232. The cubic root of 53912500 is about 377.7720507270.

The spelling of 53912500 in words is "fifty-three million, nine hundred twelve thousand, five hundred".