25261907135 has 16 divisors (see below), whose sum is σ = 30506982912. Its totient is φ = 20081152800.

The previous prime is 25261907131. The next prime is 25261907137. The reversal of 25261907135 is 53170916252.

It is not a de Polignac number, because 25261907135 - 2² = 25261907131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25261907092 and 25261907101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25261907131) 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, 4064180 + ... + 4070390.

It is an arithmetic number, because the mean of its divisors is an integer number (1906686432).

Almost surely, 2^25261907135 is an apocalyptic number.

25261907135 is a deficient number, since it is larger than the sum of its proper divisors (5245075777).

25261907135 is a wasteful number, since it uses less digits than its factorization.

25261907135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 25261907135 in words is "twenty-five billion, two hundred sixty-one million, nine hundred seven thousand, one hundred thirty-five".