55286613 has 6 divisors (see below), whose sum is σ = 79858454. Its totient is φ = 36857736.

The previous prime is 55286603. The next prime is 55286629. The reversal of 55286613 is 31668255.

It can be written as a sum of positive squares in only one way, i.e., 54508689 + 777924 = 7383^2 + 882^2 .

It is not a de Polignac number, because 55286613 - 2¹⁶ = 55221077 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 (55286603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3071470 + ... + 3071487.

Almost surely, 2^55286613 is an apocalyptic number.

It is an amenable number.

55286613 is a deficient number, since it is larger than the sum of its proper divisors (24571841).

55286613 is a wasteful number, since it uses less digits than its factorization.

55286613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142963 (or 6142960 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55286613 is about 7435.4968226743. The cubic root of 55286613 is about 380.9546931886.

The spelling of 55286613 in words is "fifty-five million, two hundred eighty-six thousand, six hundred thirteen".