55089308 has 24 divisors (see below), whose sum is σ = 97822032. Its totient is φ = 27143424.

The previous prime is 55089257. The next prime is 55089319. The reversal of 55089308 is 80398055.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 138566 + ... + 138962.

It is an arithmetic number, because the mean of its divisors is an integer number (4075918).

Almost surely, 2^55089308 is an apocalyptic number.

It is an amenable number.

55089308 is a deficient number, since it is larger than the sum of its proper divisors (42732724).

55089308 is a wasteful number, since it uses less digits than its factorization.

55089308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 55089308 is about 7422.2171889537. The cubic root of 55089308 is about 380.5009735995.

The spelling of 55089308 in words is "fifty-five million, eighty-nine thousand, three hundred eight".