55532886 has 16 divisors (see below), whose sum is σ = 111347568. Its totient is φ = 18464000.

The previous prime is 55532881. The next prime is 55532891. The reversal of 55532886 is 68823555.

It is an interprime number because it is at equal distance from previous prime (55532881) and next prime (55532891).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55532881) 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, 9135 + ... + 13946.

It is an arithmetic number, because the mean of its divisors is an integer number (6959223).

Almost surely, 2^55532886 is an apocalyptic number.

55532886 is an abundant number, since it is smaller than the sum of its proper divisors (55814682).

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

55532886 is a wasteful number, since it uses less digits than its factorization.

55532886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23487.

The product of its digits is 288000, while the sum is 42.

The square root of 55532886 is about 7452.0390498172. The cubic root of 55532886 is about 381.5195067973.

The spelling of 55532886 in words is "fifty-five million, five hundred thirty-two thousand, eight hundred eighty-six".