54986904 has 128 divisors (see below), whose sum is σ = 179020800. Its totient is φ = 15310080.

The previous prime is 54986887. The next prime is 54986933. The reversal of 54986904 is 40968945.

It is a happy number.

It is a super-2 number, since 2×54986904² = 6047119223010432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54986904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61549 + ... + 62435.

It is an arithmetic number, because the mean of its divisors is an integer number (1398600).

Almost surely, 2^54986904 is an apocalyptic number.

54986904 is a gapful number since it is divisible by the number (54) 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 54986904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89510400).

54986904 is an abundant number, since it is smaller than the sum of its proper divisors (124033896).

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

54986904 is a wasteful number, since it uses less digits than its factorization.

54986904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 54986904 is about 7415.3155023910. The cubic root of 54986904 is about 380.2650597617.

The spelling of 54986904 in words is "fifty-four million, nine hundred eighty-six thousand, nine hundred four".