55726980 has 48 divisors (see below), whose sum is σ = 161421120. Its totient is φ = 14347648.

The previous prime is 55726963. The next prime is 55726997. The reversal of 55726980 is 8962755.

It is an interprime number because it is at equal distance from previous prime (55726963) and next prime (55726997).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14274 + ... + 17753.

It is an arithmetic number, because the mean of its divisors is an integer number (3362940).

Almost surely, 2^55726980 is an apocalyptic number.

It is an amenable number.

55726980 is an abundant number, since it is smaller than the sum of its proper divisors (105694140).

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

55726980 is a wasteful number, since it uses less digits than its factorization.

55726980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32068 (or 32066 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 55726980 is about 7465.0505691522. The cubic root of 55726980 is about 381.9634752136.

The spelling of 55726980 in words is "fifty-five million, seven hundred twenty-six thousand, nine hundred eighty".