55495117 has 4 divisors (see below), whose sum is σ = 55526620. Its totient is φ = 55463616.

The previous prime is 55495103. The next prime is 55495127. The reversal of 55495117 is 71159455.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23561316 + 31933801 = 4854^2 + 5651^2 .

It is a cyclic number.

It is not a de Polignac number, because 55495117 - 2²³ = 47106509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55495127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12942 + ... + 16687.

It is an arithmetic number, because the mean of its divisors is an integer number (13881655).

Almost surely, 2^55495117 is an apocalyptic number.

It is an amenable number.

55495117 is a deficient number, since it is larger than the sum of its proper divisors (31503).

55495117 is a wasteful number, since it uses less digits than its factorization.

55495117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31502.

The product of its digits is 31500, while the sum is 37.

The square root of 55495117 is about 7449.5044801651. The cubic root of 55495117 is about 381.4329942262.

The spelling of 55495117 in words is "fifty-five million, four hundred ninety-five thousand, one hundred seventeen".