55789560 has 160 divisors (see below), whose sum is σ = 191054160. Its totient is φ = 14598144.

The previous prime is 55789541. The next prime is 55789571. The reversal of 55789560 is 6598755.

55789560 is a `hidden beast` number, since 5 + 5 + 7 + 89 + 560 = 666.

It is a super-2 number, since 2×55789560² = 6224950009987200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 216952 + ... + 217208.

Almost surely, 2^55789560 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 55789560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95527080).

55789560 is an abundant number, since it is smaller than the sum of its proper divisors (135264600).

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

55789560 is a wasteful number, since it uses less digits than its factorization.

55789560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 55789560 is about 7469.2409252882. The cubic root of 55789560 is about 382.1064001922.

The spelling of 55789560 in words is "fifty-five million, seven hundred eighty-nine thousand, five hundred sixty".