55412928 has 84 divisors (see below), whose sum is σ = 168203880. Its totient is φ = 17381376.

The previous prime is 55412921. The next prime is 55412933. The reversal of 55412928 is 82921455.

55412928 is a `hidden beast` number, since 554 + 12 + 92 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55412892 and 55412901.

It is not an unprimeable number, because it can be changed into a prime (55412921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6963 + ... + 12621.

Almost surely, 2^55412928 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 55412928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84101940).

55412928 is an abundant number, since it is smaller than the sum of its proper divisors (112790952).

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

55412928 is a wasteful number, since it uses less digits than its factorization.

55412928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694 (or 5681 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 55412928 is about 7443.9860290035. The cubic root of 55412928 is about 381.2445987589.

The spelling of 55412928 in words is "fifty-five million, four hundred twelve thousand, nine hundred twenty-eight".