55180460 has 12 divisors (see below), whose sum is σ = 115879008. Its totient is φ = 22072176.

The previous prime is 55180439. The next prime is 55180469. The reversal of 55180460 is 6408155.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55180469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379492 + ... + 1379531.

It is an arithmetic number, because the mean of its divisors is an integer number (9656584).

Almost surely, 2^55180460 is an apocalyptic number.

It is an amenable number.

55180460 is an abundant number, since it is smaller than the sum of its proper divisors (60698548).

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

55180460 is a wasteful number, since it uses less digits than its factorization.

55180460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2759032 (or 2759030 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 55180460 is about 7428.3551342138. The cubic root of 55180460 is about 380.7107197628.

The spelling of 55180460 in words is "fifty-five million, one hundred eighty thousand, four hundred sixty".