55523130320013 has 4 divisors (see below), whose sum is σ = 74030840426688. Its totient is φ = 37015420213340.

The previous prime is 55523130320003. The next prime is 55523130320033. The reversal of 55523130320013 is 31002303132555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55523130320013 - 2¹⁷ = 55523130188941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55523130320003) 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, 9253855053333 + ... + 9253855053338.

It is an arithmetic number, because the mean of its divisors is an integer number (18507710106672).

Almost surely, 2^{55523130320013} is an apocalyptic number.

It is an amenable number.

55523130320013 is a deficient number, since it is larger than the sum of its proper divisors (18507710106675).

55523130320013 is a wasteful number, since it uses less digits than its factorization.

55523130320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18507710106674.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 55523130320013 its reverse (31002303132555), we get a palindrome (86525433452568).

The spelling of 55523130320013 in words is "fifty-five trillion, five hundred twenty-three billion, one hundred thirty million, three hundred twenty thousand, thirteen".