135252561255 has 64 divisors (see below), whose sum is σ = 262084128768. Its totient is φ = 58144481280.

The previous prime is 135252561253. The next prime is 135252561277. The reversal of 135252561255 is 552165252531.

It is not a de Polignac number, because 135252561255 - 2¹ = 135252561253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135252561253) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2166559 + ... + 2228111.

It is an arithmetic number, because the mean of its divisors is an integer number (4095064512).

Almost surely, 2^135252561255 is an apocalyptic number.

135252561255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135252561255 is a deficient number, since it is larger than the sum of its proper divisors (126831567513).

135252561255 is a wasteful number, since it uses less digits than its factorization.

135252561255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62816.

The product of its digits is 450000, while the sum is 42.

The spelling of 135252561255 in words is "one hundred thirty-five billion, two hundred fifty-two million, five hundred sixty-one thousand, two hundred fifty-five".