135556351525 has 12 divisors (see below), whose sum is σ = 192102715552. Its totient is φ = 92952926640.

The previous prime is 135556351519. The next prime is 135556351559. The reversal of 135556351525 is 525153655531.

It is not a de Polignac number, because 135556351525 - 2²⁵ = 135522797093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387303687 + ... + 387304036.

Almost surely, 2^135556351525 is an apocalyptic number.

It is an amenable number.

135556351525 is a deficient number, since it is larger than the sum of its proper divisors (56546364027).

135556351525 is an equidigital number, since it uses as much as digits as its factorization.

135556351525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774607740 (or 774607735 counting only the distinct ones).

The product of its digits is 1687500, while the sum is 46.

The spelling of 135556351525 in words is "one hundred thirty-five billion, five hundred fifty-six million, three hundred fifty-one thousand, five hundred twenty-five".