25232297979 has 8 divisors (see below), whose sum is σ = 38449216000. Its totient is φ = 14418455976.

The previous prime is 25232297971. The next prime is 25232297999. The reversal of 25232297979 is 97979223252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25232297979 - 2³ = 25232297971 is a prime.

It is a super-2 number, since 2×25232297979² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25232297971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600768979 + ... + 600769020.

It is an arithmetic number, because the mean of its divisors is an integer number (4806152000).

Almost surely, 2^25232297979 is an apocalyptic number.

25232297979 is a deficient number, since it is larger than the sum of its proper divisors (13216918021).

25232297979 is a wasteful number, since it uses less digits than its factorization.

25232297979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201538009.

The product of its digits is 8573040, while the sum is 57.

The spelling of 25232297979 in words is "twenty-five billion, two hundred thirty-two million, two hundred ninety-seven thousand, nine hundred seventy-nine".