135623525225 has 48 divisors (see below), whose sum is σ = 189158428800. Its totient is φ = 95853818880.

The previous prime is 135623525183. The next prime is 135623525251. The reversal of 135623525225 is 522525326531.

It is not a de Polignac number, because 135623525225 - 2²⁴ = 135606748009 is a prime.

It is a super-2 number, since 2×135623525225² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 803132 + ... + 957218.

It is an arithmetic number, because the mean of its divisors is an integer number (3940800600).

Almost surely, 2^135623525225 is an apocalyptic number.

It is an amenable number.

135623525225 is a deficient number, since it is larger than the sum of its proper divisors (53534903575).

135623525225 is a wasteful number, since it uses less digits than its factorization.

135623525225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154242 (or 154237 counting only the distinct ones).

The product of its digits is 540000, while the sum is 41.

The spelling of 135623525225 in words is "one hundred thirty-five billion, six hundred twenty-three million, five hundred twenty-five thousand, two hundred twenty-five".