115232642557 has 2 divisors, whose sum is σ = 115232642558. Its totient is φ = 115232642556.

The previous prime is 115232642531. The next prime is 115232642561. The reversal of 115232642557 is 755246232511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58464338436 + 56768304121 = 241794^2 + 238261^2 .

It is an emirp because it is prime and its reverse (755246232511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115232642557 - 2⁷ = 115232642429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115232642507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57616321278 + 57616321279.

It is an arithmetic number, because the mean of its divisors is an integer number (57616321279).

Almost surely, 2^115232642557 is an apocalyptic number.

It is an amenable number.

115232642557 is a deficient number, since it is larger than the sum of its proper divisors (1).

115232642557 is an equidigital number, since it uses as much as digits as its factorization.

115232642557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 43.

The spelling of 115232642557 in words is "one hundred fifteen billion, two hundred thirty-two million, six hundred forty-two thousand, five hundred fifty-seven".