53977344 has 72 divisors (see below), whose sum is σ = 145941600. Its totient is φ = 17707008.

The previous prime is 53977337. The next prime is 53977351. The reversal of 53977344 is 44377935.

It is an interprime number because it is at equal distance from previous prime (53977337) and next prime (53977351).

It is a junction number, because it is equal to n+sod(n) for n = 53977296 and 53977305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50932 + ... + 51980.

Almost surely, 2^53977344 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 53977344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72970800).

53977344 is an abundant number, since it is smaller than the sum of its proper divisors (91964256).

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

53977344 is a wasteful number, since it uses less digits than its factorization.

53977344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1121 counting only the distinct ones).

The product of its digits is 317520, while the sum is 42.

The square root of 53977344 is about 7346.9275210798. The cubic root of 53977344 is about 377.9234468865.

The spelling of 53977344 in words is "fifty-three million, nine hundred seventy-seven thousand, three hundred forty-four".