55299012123913 has 2 divisors, whose sum is σ = 55299012123914. Its totient is φ = 55299012123912.

The previous prime is 55299012123911. The next prime is 55299012123937. The reversal of 55299012123913 is 31932121099255.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45636942382144 + 9662069741769 = 6755512^2 + 3108387^2 .

It is a cyclic number.

It is not a de Polignac number, because 55299012123913 - 2¹ = 55299012123911 is a prime.

Together with 55299012123911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55299012123911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27649506061956 + 27649506061957.

It is an arithmetic number, because the mean of its divisors is an integer number (27649506061957).

Almost surely, 2^{55299012123913} is an apocalyptic number.

It is an amenable number.

55299012123913 is a deficient number, since it is larger than the sum of its proper divisors (1).

55299012123913 is an equidigital number, since it uses as much as digits as its factorization.

55299012123913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The spelling of 55299012123913 in words is "fifty-five trillion, two hundred ninety-nine billion, twelve million, one hundred twenty-three thousand, nine hundred thirteen".