25972123 has 2 divisors, whose sum is σ = 25972124. Its totient is φ = 25972122.

The previous prime is 25972103. The next prime is 25972189. The reversal of 25972123 is 32127952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25972123 - 2⁵ = 25972091 is a prime.

It is not a weakly prime, because it can be changed into another prime (25972103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12986061 + 12986062.

It is an arithmetic number, because the mean of its divisors is an integer number (12986062).

Almost surely, 2^25972123 is an apocalyptic number.

25972123 is a deficient number, since it is larger than the sum of its proper divisors (1).

25972123 is an equidigital number, since it uses as much as digits as its factorization.

25972123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 25972123 is about 5096.2852157233. The cubic root of 25972123 is about 296.1436901275.

The spelling of 25972123 in words is "twenty-five million, nine hundred seventy-two thousand, one hundred twenty-three".