115557553 has 4 divisors (see below), whose sum is σ = 119285248. Its totient is φ = 111829860.

The previous prime is 115557527. The next prime is 115557583. The reversal of 115557553 is 355755511.

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 115557553 - 2¹³ = 115549361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115557503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863801 + ... + 1863862.

It is an arithmetic number, because the mean of its divisors is an integer number (29821312).

Almost surely, 2^115557553 is an apocalyptic number.

It is an amenable number.

115557553 is a deficient number, since it is larger than the sum of its proper divisors (3727695).

115557553 is an equidigital number, since it uses as much as digits as its factorization.

115557553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727694.

The product of its digits is 65625, while the sum is 37.

The square root of 115557553 is about 10749.7699045142. The cubic root of 115557553 is about 487.0790447193.

The spelling of 115557553 in words is "one hundred fifteen million, five hundred fifty-seven thousand, five hundred fifty-three".