25484929579 has 2 divisors, whose sum is σ = 25484929580. Its totient is φ = 25484929578.

The previous prime is 25484929571. The next prime is 25484929621. The reversal of 25484929579 is 97592948452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25484929579 - 2³ = 25484929571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25484929579.

It is not a weakly prime, because it can be changed into another prime (25484929571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12742464789 + 12742464790.

It is an arithmetic number, because the mean of its divisors is an integer number (12742464790).

Almost surely, 2^25484929579 is an apocalyptic number.

25484929579 is a deficient number, since it is larger than the sum of its proper divisors (1).

25484929579 is an equidigital number, since it uses as much as digits as its factorization.

25484929579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 64.

The spelling of 25484929579 in words is "twenty-five billion, four hundred eighty-four million, nine hundred twenty-nine thousand, five hundred seventy-nine".