115315400553 has 4 divisors (see below), whose sum is σ = 153753867408. Its totient is φ = 76876933700.

The previous prime is 115315400549. The next prime is 115315400573. The reversal of 115315400553 is 355004513511.

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 115315400553 - 2² = 115315400549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115315400573) 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, 19219233423 + ... + 19219233428.

It is an arithmetic number, because the mean of its divisors is an integer number (38438466852).

Almost surely, 2^115315400553 is an apocalyptic number.

It is an amenable number.

115315400553 is a deficient number, since it is larger than the sum of its proper divisors (38438466855).

115315400553 is an equidigital number, since it uses as much as digits as its factorization.

115315400553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38438466854.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 115315400553 in words is "one hundred fifteen billion, three hundred fifteen million, four hundred thousand, five hundred fifty-three".