55708560 has 100 divisors (see below), whose sum is σ = 193506588. Its totient is φ = 14853888.

The previous prime is 55708547. The next prime is 55708573. The reversal of 55708560 is 6580755.

55708560 is a `hidden beast` number, since 5 + 570 + 85 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (55708547) and next prime (55708573).

It can be written as a sum of positive squares in 2 ways, for example, as 29942784 + 25765776 = 5472^2 + 5076^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2182 + ... + 10778.

Almost surely, 2^55708560 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 55708560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96753294).

55708560 is an abundant number, since it is smaller than the sum of its proper divisors (137798028).

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

55708560 is a wasteful number, since it uses less digits than its factorization.

55708560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8622 (or 8607 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 55708560 is about 7463.8167180069. The cubic root of 55708560 is about 381.9213858310.

The spelling of 55708560 in words is "fifty-five million, seven hundred eight thousand, five hundred sixty".