54978500 has 48 divisors (see below), whose sum is σ = 123981312. Its totient is φ = 21276000.

The previous prime is 54978491. The next prime is 54978503. The reversal of 54978500 is 587945.

It is not an unprimeable number, because it can be changed into a prime (54978503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13727 + ... + 17273.

It is an arithmetic number, because the mean of its divisors is an integer number (2582944).

Almost surely, 2^54978500 is an apocalyptic number.

54978500 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 54978500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61990656).

54978500 is an abundant number, since it is smaller than the sum of its proper divisors (69002812).

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

54978500 is a wasteful number, since it uses less digits than its factorization.

54978500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 54978500 is about 7414.7488157051. The cubic root of 54978500 is about 380.2456859948.

The spelling of 54978500 in words is "fifty-four million, nine hundred seventy-eight thousand, five hundred".