55580756 has 48 divisors (see below), whose sum is σ = 122059392. Its totient is φ = 21513600.

The previous prime is 55580747. The next prime is 55580761. The reversal of 55580756 is 65708555.

It is a congruent 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, 55250 + ... + 56246.

It is an arithmetic number, because the mean of its divisors is an integer number (2542904).

Almost surely, 2^55580756 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 55580756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61029696).

55580756 is an abundant number, since it is smaller than the sum of its proper divisors (66478636).

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

55580756 is a wasteful number, since it uses less digits than its factorization.

55580756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 41.

The square root of 55580756 is about 7455.2502305422. The cubic root of 55580756 is about 381.6291000784.

The spelling of 55580756 in words is "fifty-five million, five hundred eighty thousand, seven hundred fifty-six".