55159065 has 36 divisors (see below), whose sum is σ = 103543596. Its totient is φ = 27151488.

The previous prime is 55159043. The next prime is 55159099. The reversal of 55159065 is 56095155.

55159065 is a `hidden beast` number, since 5 + 5 + 1 + 590 + 65 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 6215049 + 48944016 = 2493^2 + 6996^2 .

It is not a de Polignac number, because 55159065 - 2⁹ = 55158553 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3979 + ... + 11231.

It is an arithmetic number, because the mean of its divisors is an integer number (2876211).

Almost surely, 2^55159065 is an apocalyptic number.

It is an amenable number.

55159065 is a deficient number, since it is larger than the sum of its proper divisors (48384531).

55159065 is a wasteful number, since it uses less digits than its factorization.

55159065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7290 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 55159065 is about 7426.9149045886. The cubic root of 55159065 is about 380.6615093552.

The spelling of 55159065 in words is "fifty-five million, one hundred fifty-nine thousand, sixty-five".