55259724431 has 32 divisors (see below), whose sum is σ = 60632064000. Its totient is φ = 50162982912.

The previous prime is 55259724413. The next prime is 55259724433. The reversal of 55259724431 is 13442795255.

It is a cyclic number.

It is not a de Polignac number, because 55259724431 - 2¹⁸ = 55259462287 is a prime.

It is a super-2 number, since 2×55259724431² (a number of 22 digits) 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 (55259724433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50836370 + ... + 50837456.

It is an arithmetic number, because the mean of its divisors is an integer number (1894752000).

Almost surely, 2^55259724431 is an apocalyptic number.

55259724431 is a deficient number, since it is larger than the sum of its proper divisors (5372339569).

55259724431 is a wasteful number, since it uses less digits than its factorization.

55259724431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its digits is 1512000, while the sum is 47.

The spelling of 55259724431 in words is "fifty-five billion, two hundred fifty-nine million, seven hundred twenty-four thousand, four hundred thirty-one".