55974828 has 72 divisors (see below), whose sum is σ = 161672448. Its totient is φ = 14758848.

The previous prime is 55974827. The next prime is 55974833. The reversal of 55974828 is 82847955.

It is not an unprimeable number, because it can be changed into a prime (55974823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12225 + ... + 16167.

Almost surely, 2^55974828 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 55974828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80836224).

55974828 is an abundant number, since it is smaller than the sum of its proper divisors (105697620).

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

55974828 is a wasteful number, since it uses less digits than its factorization.

55974828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3983 (or 3968 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 55974828 is about 7481.6327095093. The cubic root of 55974828 is about 382.5289037922.

The spelling of 55974828 in words is "fifty-five million, nine hundred seventy-four thousand, eight hundred twenty-eight".