55827928 has 48 divisors (see below), whose sum is σ = 119054880. Its totient is φ = 24394176.

The previous prime is 55827917. The next prime is 55827943. The reversal of 55827928 is 82972855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36801 + ... + 38287.

It is an arithmetic number, because the mean of its divisors is an integer number (2480310).

Almost surely, 2^55827928 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 55827928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59527440).

55827928 is an abundant number, since it is smaller than the sum of its proper divisors (63226952).

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

55827928 is a wasteful number, since it uses less digits than its factorization.

55827928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1521 counting only the distinct ones).

The product of its digits is 403200, while the sum is 46.

The square root of 55827928 is about 7471.8088840655. The cubic root of 55827928 is about 382.1939751124.

The spelling of 55827928 in words is "fifty-five million, eight hundred twenty-seven thousand, nine hundred twenty-eight".