55929580 has 96 divisors (see below), whose sum is σ = 141926400. Its totient is φ = 18486720.

The previous prime is 55929571. The next prime is 55929623. The reversal of 55929580 is 8592955.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212529 + ... + 212791.

It is an arithmetic number, because the mean of its divisors is an integer number (1478400).

Almost surely, 2^55929580 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 55929580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70963200).

55929580 is an abundant number, since it is smaller than the sum of its proper divisors (85996820).

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

55929580 is a wasteful number, since it uses less digits than its factorization.

55929580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 308 counting only the distinct ones).

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

The square root of 55929580 is about 7478.6081592767. The cubic root of 55929580 is about 382.4258018893.

The spelling of 55929580 in words is "fifty-five million, nine hundred twenty-nine thousand, five hundred eighty".