55489305 has 8 divisors (see below), whose sum is σ = 88782912. Its totient is φ = 29594288.

The previous prime is 55489297. The next prime is 55489319. The reversal of 55489305 is 50398455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55489305 - 2³ = 55489297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849629 + ... + 1849658.

It is an arithmetic number, because the mean of its divisors is an integer number (11097864).

Almost surely, 2^55489305 is an apocalyptic number.

It is an amenable number.

55489305 is a deficient number, since it is larger than the sum of its proper divisors (33293607).

55489305 is a wasteful number, since it uses less digits than its factorization.

55489305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699295.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 55489305 is about 7449.1143768907. The cubic root of 55489305 is about 381.4196779437.

The spelling of 55489305 in words is "fifty-five million, four hundred eighty-nine thousand, three hundred five".