55249585 has 8 divisors (see below), whose sum is σ = 67550760. Its totient is φ = 43365504.

The previous prime is 55249577. The next prime is 55249619. The reversal of 55249585 is 58594255.

It can be written as a sum of positive squares in 4 ways, for example, as 6974881 + 48274704 = 2641^2 + 6948^2 .

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 55249585 - 2³ = 55249577 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, 103980 + ... + 104509.

It is an arithmetic number, because the mean of its divisors is an integer number (8443845).

Almost surely, 2^55249585 is an apocalyptic number.

It is an amenable number.

55249585 is a deficient number, since it is larger than the sum of its proper divisors (12301175).

55249585 is a wasteful number, since it uses less digits than its factorization.

55249585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208547.

The product of its digits is 360000, while the sum is 43.

The square root of 55249585 is about 7433.0064576859. The cubic root of 55249585 is about 380.8696265397.

The spelling of 55249585 in words is "fifty-five million, two hundred forty-nine thousand, five hundred eighty-five".