55488556 has 24 divisors (see below), whose sum is σ = 99348480. Its totient is φ = 27109200.

The previous prime is 55488551. The next prime is 55488593. The reversal of 55488556 is 65588455.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55488551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44461 + ... + 45691.

It is an arithmetic number, because the mean of its divisors is an integer number (4139520).

Almost surely, 2^55488556 is an apocalyptic number.

It is an amenable number.

55488556 is a deficient number, since it is larger than the sum of its proper divisors (43859924).

55488556 is a wasteful number, since it uses less digits than its factorization.

55488556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1483 counting only the distinct ones).

The product of its digits is 960000, while the sum is 46.

The square root of 55488556 is about 7449.0641022883. The cubic root of 55488556 is about 381.4179617895.

The spelling of 55488556 in words is "fifty-five million, four hundred eighty-eight thousand, five hundred fifty-six".