55705860 has 96 divisors (see below), whose sum is σ = 198078720. Its totient is φ = 12731904.

The previous prime is 55705847. The next prime is 55705861. The reversal of 55705860 is 6850755.

55705860 is a `hidden beast` number, since 5 + 5 + 70 + 586 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (55705861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3589 + ... + 11148.

It is an arithmetic number, because the mean of its divisors is an integer number (2063320).

Almost surely, 2^55705860 is an apocalyptic number.

It is an amenable number.

55705860 is an abundant number, since it is smaller than the sum of its proper divisors (142372860).

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

55705860 is a wasteful number, since it uses less digits than its factorization.

55705860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14762 (or 14754 counting only the distinct ones).

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

The square root of 55705860 is about 7463.6358432067. The cubic root of 55705860 is about 381.9152155979.

It can be divided in two parts, 55705 and 860, that added together give a palindrome (56565).

The spelling of 55705860 in words is "fifty-five million, seven hundred five thousand, eight hundred sixty".