55599073 has 16 divisors (see below), whose sum is σ = 62392320. Its totient is φ = 49292496.

The previous prime is 55599059. The next prime is 55599083. The reversal of 55599073 is 37099555.

It is a de Polignac number, because none of the positive numbers 2^k-55599073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55599013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19186 + ... + 21892.

It is an arithmetic number, because the mean of its divisors is an integer number (3899520).

Almost surely, 2^55599073 is an apocalyptic number.

It is an amenable number.

55599073 is a deficient number, since it is larger than the sum of its proper divisors (6793247).

55599073 is a wasteful number, since it uses less digits than its factorization.

55599073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 212625, while the sum is 43.

The square root of 55599073 is about 7456.4785924725. The cubic root of 55599073 is about 381.6710182588.

The spelling of 55599073 in words is "fifty-five million, five hundred ninety-nine thousand, seventy-three".