25040512605 has 16 divisors (see below), whose sum is σ = 40070701440. Its totient is φ = 13352979648.

The previous prime is 25040512603. The next prime is 25040512631. The reversal of 25040512605 is 50621504052.

It is not a de Polignac number, because 25040512605 - 2¹ = 25040512603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25040512603) 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, 13825 + ... + 224214.

It is an arithmetic number, because the mean of its divisors is an integer number (2504418840).

Almost surely, 2^25040512605 is an apocalyptic number.

It is an amenable number.

25040512605 is a deficient number, since it is larger than the sum of its proper divisors (15030188835).

25040512605 is a wasteful number, since it uses less digits than its factorization.

25040512605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245060.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 25040512605 in words is "twenty-five billion, forty million, five hundred twelve thousand, six hundred five".