55599263 has 4 divisors (see below), whose sum is σ = 58525560. Its totient is φ = 52672968.

The previous prime is 55599253. The next prime is 55599281. The reversal of 55599263 is 36299555.

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

It is a cyclic number.

It is not a de Polignac number, because 55599263 - 2¹⁸ = 55337119 is a prime.

It is a super-2 number, since 2×55599263² = 6182556092286338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55599223) 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, 1463120 + ... + 1463157.

It is an arithmetic number, because the mean of its divisors is an integer number (14631390).

Almost surely, 2^55599263 is an apocalyptic number.

55599263 is a deficient number, since it is larger than the sum of its proper divisors (2926297).

55599263 is a wasteful number, since it uses less digits than its factorization.

55599263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926296.

The product of its digits is 364500, while the sum is 44.

The square root of 55599263 is about 7456.4913330601. The cubic root of 55599263 is about 381.6714530227.

The spelling of 55599263 in words is "fifty-five million, five hundred ninety-nine thousand, two hundred sixty-three".