54187500 has 126 divisors (see below), whose sum is σ = 167888476. Its totient is φ = 13600000.

The previous prime is 54187489. The next prime is 54187513. The reversal of 54187500 is 578145.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 3187492 + ... + 3187508.

Almost surely, 2^54187500 is an apocalyptic number.

54187500 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 54187500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83944238).

54187500 is an abundant number, since it is smaller than the sum of its proper divisors (113700976).

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

54187500 is an equidigital number, since it uses as much as digits as its factorization.

54187500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 54187500 is about 7361.2159321677. The cubic root of 54187500 is about 378.4132821957.

The spelling of 54187500 in words is "fifty-four million, one hundred eighty-seven thousand, five hundred".