1255355433135 has 24 divisors (see below), whose sum is σ = 2178593405664. Its totient is φ = 668709362880.

The previous prime is 1255355433119. The next prime is 1255355433139. The reversal of 1255355433135 is 5313345535521.

1255355433135 is a `hidden beast` number, since 1 + 2 + 5 + 53 + 554 + 33 + 13 + 5 = 666.

It is not a de Polignac number, because 1255355433135 - 2⁴ = 1255355433119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255355433139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16911196 + ... + 16985265.

It is an arithmetic number, because the mean of its divisors is an integer number (90774725236).

Almost surely, 2^{1255355433135} is an apocalyptic number.

1255355433135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1255355433135 is a deficient number, since it is larger than the sum of its proper divisors (923237972529).

1255355433135 is a wasteful number, since it uses less digits than its factorization.

1255355433135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33897295 (or 33897292 counting only the distinct ones).

The product of its digits is 2025000, while the sum is 45.

The spelling of 1255355433135 in words is "one trillion, two hundred fifty-five billion, three hundred fifty-five million, four hundred thirty-three thousand, one hundred thirty-five".