135512345550525 has 24 divisors (see below), whose sum is σ = 224048811294624. Its totient is φ = 72272691825600.

The previous prime is 135512345550433. The next prime is 135512345550563. The reversal of 135512345550525 is 525055543215531.

It is a happy number.

It is not a de Polignac number, because 135512345550525 - 2⁸ = 135512345550269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2861830 + ... + 16709720.

It is an arithmetic number, because the mean of its divisors is an integer number (9335367137276).

Almost surely, 2^{135512345550525} is an apocalyptic number.

135512345550525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135512345550525 is a deficient number, since it is larger than the sum of its proper divisors (88536465744099).

135512345550525 is a wasteful number, since it uses less digits than its factorization.

135512345550525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13978381 (or 13978376 counting only the distinct ones).

The product of its (nonzero) digits is 11250000, while the sum is 51.

The spelling of 135512345550525 in words is "one hundred thirty-five trillion, five hundred twelve billion, three hundred forty-five million, five hundred fifty thousand, five hundred twenty-five".