55456980 has 24 divisors (see below), whose sum is σ = 155279712. Its totient is φ = 14788512.

The previous prime is 55456967. The next prime is 55456981. The reversal of 55456980 is 8965455.

55456980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55456981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462082 + ... + 462201.

It is an arithmetic number, because the mean of its divisors is an integer number (6469988).

Almost surely, 2^55456980 is an apocalyptic number.

It is an amenable number.

55456980 is an abundant number, since it is smaller than the sum of its proper divisors (99822732).

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

55456980 is a wasteful number, since it uses less digits than its factorization.

55456980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924295 (or 924293 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 55456980 is about 7446.9443397947. The cubic root of 55456980 is about 381.3455988877.

The spelling of 55456980 in words is "fifty-five million, four hundred fifty-six thousand, nine hundred eighty".