55707960 has 128 divisors (see below), whose sum is σ = 208396800. Its totient is φ = 11573760.

The previous prime is 55707959. The next prime is 55707991. The reversal of 55707960 is 6970755.

It is a congruent number.

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, 6226 + ... + 12254.

It is an arithmetic number, because the mean of its divisors is an integer number (1628100).

Almost surely, 2^55707960 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 55707960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104198400).

55707960 is an abundant number, since it is smaller than the sum of its proper divisors (152688840).

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

55707960 is a wasteful number, since it uses less digits than its factorization.

55707960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061 (or 6057 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 55707960 is about 7463.7765239857. The cubic root of 55707960 is about 381.9200146853.

It can be divided in two parts, 5570 and 7960, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 55707960 in words is "fifty-five million, seven hundred seven thousand, nine hundred sixty".