25345040135255 has 16 divisors (see below), whose sum is σ = 30945107168640. Its totient is φ = 19922338696992.

The previous prime is 25345040135251. The next prime is 25345040135279. The reversal of 25345040135255 is 55253104054352.

It is a cyclic number.

It is not a de Polignac number, because 25345040135255 - 2² = 25345040135251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25345040135251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21033209 + ... + 22205538.

It is an arithmetic number, because the mean of its divisors is an integer number (1934069198040).

Almost surely, 2^{25345040135255} is an apocalyptic number.

25345040135255 is a deficient number, since it is larger than the sum of its proper divisors (5600067033385).

25345040135255 is a wasteful number, since it uses less digits than its factorization.

25345040135255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43240798.

The product of its (nonzero) digits is 1800000, while the sum is 44.

The spelling of 25345040135255 in words is "twenty-five trillion, three hundred forty-five billion, forty million, one hundred thirty-five thousand, two hundred fifty-five".