55560156 has 12 divisors (see below), whose sum is σ = 129640392. Its totient is φ = 18520048.

The previous prime is 55560139. The next prime is 55560173. The reversal of 55560156 is 65106555.

It is an interprime number because it is at equal distance from previous prime (55560139) and next prime (55560173).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314995 + ... + 2315018.

It is an arithmetic number, because the mean of its divisors is an integer number (10803366).

Almost surely, 2^55560156 is an apocalyptic number.

It is an amenable number.

55560156 is an abundant number, since it is smaller than the sum of its proper divisors (74080236).

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

55560156 is a wasteful number, since it uses less digits than its factorization.

55560156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4630020 (or 4630018 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 55560156 is about 7453.8685258059. The cubic root of 55560156 is about 381.5819462823.

It can be divided in two parts, 55 and 560156, that added together give a triangular number (560211 = T₁₀₅₈).

The spelling of 55560156 in words is "fifty-five million, five hundred sixty thousand, one hundred fifty-six".