25603140605 has 16 divisors (see below), whose sum is σ = 35115980544. Its totient is φ = 17554888320.

The previous prime is 25603140571. The next prime is 25603140617. The reversal of 25603140605 is 50604130652.

It is not a de Polignac number, because 25603140605 - 2¹⁰ = 25603139581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487160 + ... + 537150.

It is an arithmetic number, because the mean of its divisors is an integer number (2194748784).

Almost surely, 2^25603140605 is an apocalyptic number.

It is an amenable number.

25603140605 is a deficient number, since it is larger than the sum of its proper divisors (9512839939).

25603140605 is a wasteful number, since it uses less digits than its factorization.

25603140605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64636.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 25603140605 in words is "twenty-five billion, six hundred three million, one hundred forty thousand, six hundred five".