1255559115 has 8 divisors (see below), whose sum is σ = 2008894608. Its totient is φ = 669631520.

The previous prime is 1255559093. The next prime is 1255559141. The reversal of 1255559115 is 5119555521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1255559115 - 2⁶ = 1255559051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41851956 + ... + 41851985.

It is an arithmetic number, because the mean of its divisors is an integer number (251111826).

Almost surely, 2^1255559115 is an apocalyptic number.

1255559115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1255559115 is a deficient number, since it is larger than the sum of its proper divisors (753335493).

1255559115 is an equidigital number, since it uses as much as digits as its factorization.

1255559115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83703949.

The product of its digits is 56250, while the sum is 39.

The square root of 1255559115 is about 35433.8696024016. The cubic root of 1255559115 is about 1078.8118835809.

The spelling of 1255559115 in words is "one billion, two hundred fifty-five million, five hundred fifty-nine thousand, one hundred fifteen".