55488530 has 16 divisors (see below), whose sum is σ = 102579480. Its totient is φ = 21595392.

The previous prime is 55488487. The next prime is 55488547. The reversal of 55488530 is 3588455.

It can be written as a sum of positive squares in 4 ways, for example, as 38850289 + 16638241 = 6233^2 + 4079^2 .

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 7 ways as a sum of consecutive naturals, for example, 74615 + ... + 75354.

Almost surely, 2^55488530 is an apocalyptic number.

55488530 is a deficient number, since it is larger than the sum of its proper divisors (47090950).

55488530 is a wasteful number, since it uses less digits than its factorization.

55488530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150013.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 55488530 is about 7449.0623571024. The cubic root of 55488530 is about 381.4179022164.

The spelling of 55488530 in words is "fifty-five million, four hundred eighty-eight thousand, five hundred thirty".