54619686 has 48 divisors (see below), whose sum is σ = 129662208. Its totient is φ = 16479600.

The previous prime is 54619679. The next prime is 54619703. The reversal of 54619686 is 68691645.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61135 + ... + 62021.

It is an arithmetic number, because the mean of its divisors is an integer number (2701296).

Almost surely, 2^54619686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54619686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64831104).

54619686 is an abundant number, since it is smaller than the sum of its proper divisors (75042522).

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

54619686 is a wasteful number, since it uses less digits than its factorization.

54619686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1214 counting only the distinct ones).

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

The square root of 54619686 is about 7390.5132433411. The cubic root of 54619686 is about 379.4166626882.

The spelling of 54619686 in words is "fifty-four million, six hundred nineteen thousand, six hundred eighty-six".