25145448579 has 12 divisors (see below), whose sum is σ = 37900386576. Its totient is φ = 16034778672.

The previous prime is 25145448569. The next prime is 25145448589. The reversal of 25145448579 is 97584454152.

25145448579 is a `hidden beast` number, since 2 + 5 + 14 + 54 + 4 + 8 + 579 = 666.

It is an interprime number because it is at equal distance from previous prime (25145448569) and next prime (25145448589).

It is not a de Polignac number, because 25145448579 - 2⁴ = 25145448563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25145448569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60737592 + ... + 60738005.

It is an arithmetic number, because the mean of its divisors is an integer number (3158365548).

Almost surely, 2^25145448579 is an apocalyptic number.

25145448579 is a deficient number, since it is larger than the sum of its proper divisors (12754937997).

25145448579 is a wasteful number, since it uses less digits than its factorization.

25145448579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121475626 (or 121475623 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 25145448579 in words is "twenty-five billion, one hundred forty-five million, four hundred forty-eight thousand, five hundred seventy-nine".