54891616 has 48 divisors (see below), whose sum is σ = 121461984. Its totient is φ = 24228864.

The previous prime is 54891611. The next prime is 54891659. The reversal of 54891616 is 61619845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54891611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6700 + ... + 12436.

It is an arithmetic number, because the mean of its divisors is an integer number (2530458).

Almost surely, 2^54891616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54891616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60730992).

54891616 is an abundant number, since it is smaller than the sum of its proper divisors (66570368).

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

54891616 is a wasteful number, since it uses less digits than its factorization.

54891616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783 (or 5775 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 54891616 is about 7408.8876358061. The cubic root of 54891616 is about 380.0452762303.

The spelling of 54891616 in words is "fifty-four million, eight hundred ninety-one thousand, six hundred sixteen".