25463032979 has 2 divisors, whose sum is σ = 25463032980. Its totient is φ = 25463032978.

The previous prime is 25463032961. The next prime is 25463033033. The reversal of 25463032979 is 97923036452.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25463032979 is a prime.

It is a super-2 number, since 2×25463032979² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25463032949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12731516489 + 12731516490.

It is an arithmetic number, because the mean of its divisors is an integer number (12731516490).

Almost surely, 2^25463032979 is an apocalyptic number.

25463032979 is a deficient number, since it is larger than the sum of its proper divisors (1).

25463032979 is an equidigital number, since it uses as much as digits as its factorization.

25463032979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 25463032979 in words is "twenty-five billion, four hundred sixty-three million, thirty-two thousand, nine hundred seventy-nine".