55059928 has 72 divisors (see below), whose sum is σ = 132179580. Its totient is φ = 21262080.

The previous prime is 55059911. The next prime is 55059931. The reversal of 55059928 is 82995055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 487200 + ... + 487312.

Almost surely, 2^55059928 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 55059928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66089790).

55059928 is an abundant number, since it is smaller than the sum of its proper divisors (77119652).

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

55059928 is a wasteful number, since it uses less digits than its factorization.

55059928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 43.

The square root of 55059928 is about 7420.2377320407. The cubic root of 55059928 is about 380.4333191735.

The spelling of 55059928 in words is "fifty-five million, fifty-nine thousand, nine hundred twenty-eight".