54687500 has 60 divisors (see below), whose sum is σ = 136718736. Its totient is φ = 18750000.

The previous prime is 54687499. The next prime is 54687511. The reversal of 54687500 is 578645.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7812497 + ... + 7812503.

Almost surely, 2^54687500 is an apocalyptic number.

54687500 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 54687500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68359368).

54687500 is an abundant number, since it is smaller than the sum of its proper divisors (82031236).

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

54687500 is an frugal number, since it uses more digits than its factorization.

54687500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 14 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 54687500 is about 7395.0997288745. The cubic root of 54687500 is about 379.5736214845.

Multiplying 54687500 by its sum of digits (35), we get a square (1914062500 = 43750²).

54687500 divided by its sum of digits (35) gives a square (1562500 = 1250²).

The spelling of 54687500 in words is "fifty-four million, six hundred eighty-seven thousand, five hundred".