25460617579 has 32 divisors (see below), whose sum is σ = 28531077120. Its totient is φ = 22596744192.

The previous prime is 25460617577. The next prime is 25460617603. The reversal of 25460617579 is 97571606452.

It is a cyclic number.

It is not a de Polignac number, because 25460617579 - 2¹ = 25460617577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25460617571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9328287 + ... + 9331015.

It is an arithmetic number, because the mean of its divisors is an integer number (891596160).

Almost surely, 2^25460617579 is an apocalyptic number.

25460617579 is a deficient number, since it is larger than the sum of its proper divisors (3070459541).

25460617579 is a wasteful number, since it uses less digits than its factorization.

25460617579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 25460617579 in words is "twenty-five billion, four hundred sixty million, six hundred seventeen thousand, five hundred seventy-nine".