115515423325553 has 2 divisors, whose sum is σ = 115515423325554. Its totient is φ = 115515423325552.

The previous prime is 115515423325541. The next prime is 115515423325559. The reversal of 115515423325553 is 355523324515511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115500416340544 + 15006985009 = 10747112^2 + 122503^2 .

It is a cyclic number.

It is not a de Polignac number, because 115515423325553 - 2²⁸ = 115515154890097 is a prime.

It is a super-2 number, since 2×115515423325553² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115515423325559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57757711662776 + 57757711662777.

It is an arithmetic number, because the mean of its divisors is an integer number (57757711662777).

Almost surely, 2^{115515423325553} is an apocalyptic number.

It is an amenable number.

115515423325553 is a deficient number, since it is larger than the sum of its proper divisors (1).

115515423325553 is an equidigital number, since it uses as much as digits as its factorization.

115515423325553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6750000, while the sum is 50.

The spelling of 115515423325553 in words is "one hundred fifteen trillion, five hundred fifteen billion, four hundred twenty-three million, three hundred twenty-five thousand, five hundred fifty-three".