55597080 has 192 divisors, whose sum is σ = 209905920. Its totient is φ = 11531520.

The previous prime is 55597079. The next prime is 55597109. The reversal of 55597080 is 8079555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101367 + ... + 101913.

It is an arithmetic number, because the mean of its divisors is an integer number (1093260).

Almost surely, 2^55597080 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 55597080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104952960).

55597080 is an abundant number, since it is smaller than the sum of its proper divisors (154308840).

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

55597080 is a wasteful number, since it uses less digits than its factorization.

55597080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 39.

The square root of 55597080 is about 7456.3449491021. The cubic root of 55597080 is about 381.6664577545. Note that the first 3 decimals are identical.

The spelling of 55597080 in words is "fifty-five million, five hundred ninety-seven thousand, eighty".