25040412135 has 24 divisors (see below), whose sum is σ = 44139036240. Its totient is φ = 13128531072.

The previous prime is 25040412109. The next prime is 25040412139. The reversal of 25040412135 is 53121404052.

25040412135 is a `hidden beast` number, since 2 + 504 + 0 + 4 + 121 + 35 = 666.

It is not a de Polignac number, because 25040412135 - 2¹⁶ = 25040346599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25040412099 and 25040412108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25040412139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4713054 + ... + 4718363.

It is an arithmetic number, because the mean of its divisors is an integer number (1839126510).

Almost surely, 2^25040412135 is an apocalyptic number.

25040412135 is a deficient number, since it is larger than the sum of its proper divisors (19098624105).

25040412135 is a wasteful number, since it uses less digits than its factorization.

25040412135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9431487 (or 9431484 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 25040412135 its reverse (53121404052), we get a palindrome (78161816187).

The spelling of 25040412135 in words is "twenty-five billion, forty million, four hundred twelve thousand, one hundred thirty-five".