55308480 has 112 divisors (see below), whose sum is σ = 185988960. Its totient is φ = 13877248.

The previous prime is 55308479. The next prime is 55308493. The reversal of 55308480 is 8480355.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14626 + ... + 18014.

Almost surely, 2^55308480 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 55308480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92994480).

55308480 is an abundant number, since it is smaller than the sum of its proper divisors (130680480).

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

55308480 is a wasteful number, since it uses less digits than its factorization.

55308480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426 (or 3416 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 55308480 is about 7436.9671237676. The cubic root of 55308480 is about 381.0049117243.

The spelling of 55308480 in words is "fifty-five million, three hundred eight thousand, four hundred eighty".