55937500 has 48 divisors (see below), whose sum is σ = 123046560. Its totient is φ = 22250000.

The previous prime is 55937477. The next prime is 55937513. The reversal of 55937500 is 573955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312411 + ... + 312589.

It is an arithmetic number, because the mean of its divisors is an integer number (2563470).

Almost surely, 2^55937500 is an apocalyptic number.

55937500 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 55937500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61523280).

55937500 is an abundant number, since it is smaller than the sum of its proper divisors (67109060).

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

55937500 is an frugal number, since it uses more digits than its factorization.

55937500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 34.

The square root of 55937500 is about 7479.1376508258. The cubic root of 55937500 is about 382.4438523818.

The spelling of 55937500 in words is "fifty-five million, nine hundred thirty-seven thousand, five hundred".