55959223287 has 32 divisors (see below), whose sum is σ = 81933375744. Its totient is φ = 33690988800.

The previous prime is 55959223277. The next prime is 55959223297. The reversal of 55959223287 is 78232295955.

It is an interprime number because it is at equal distance from previous prime (55959223277) and next prime (55959223297).

It is not a de Polignac number, because 55959223287 - 2¹⁸ = 55958961143 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55959223277) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4485963 + ... + 4498419.

It is an arithmetic number, because the mean of its divisors is an integer number (2560417992).

Almost surely, 2^55959223287 is an apocalyptic number.

55959223287 is a deficient number, since it is larger than the sum of its proper divisors (25974152457).

55959223287 is a wasteful number, since it uses less digits than its factorization.

55959223287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13359.

The product of its digits is 13608000, while the sum is 57.

The spelling of 55959223287 in words is "fifty-five billion, nine hundred fifty-nine million, two hundred twenty-three thousand, two hundred eighty-seven".