55613899 has 6 divisors (see below), whose sum is σ = 61129460. Its totient is φ = 50557980.

The previous prime is 55613897. The next prime is 55613941. The reversal of 55613899 is 99831655.

55613899 = 3042² + 3043² + ... + 3047².

55613899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55613899 - 2¹ = 55613897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55613897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229689 + ... + 229930.

Almost surely, 2^55613899 is an apocalyptic number.

55613899 is a deficient number, since it is larger than the sum of its proper divisors (5515561).

55613899 is a wasteful number, since it uses less digits than its factorization.

55613899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459641 (or 459630 counting only the distinct ones).

The product of its digits is 291600, while the sum is 46.

The square root of 55613899 is about 7457.4726952232. The cubic root of 55613899 is about 381.7049405966.

The spelling of 55613899 in words is "fifty-five million, six hundred thirteen thousand, eight hundred ninety-nine".