25013123 has 2 divisors, whose sum is σ = 25013124. Its totient is φ = 25013122.

The previous prime is 25013113. The next prime is 25013159. The reversal of 25013123 is 32131052.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25013123 - 2²⁰ = 23964547 is a prime.

It is not a weakly prime, because it can be changed into another prime (25013113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12506561 + 12506562.

It is an arithmetic number, because the mean of its divisors is an integer number (12506562).

Almost surely, 2^25013123 is an apocalyptic number.

25013123 is a deficient number, since it is larger than the sum of its proper divisors (1).

25013123 is an equidigital number, since it uses as much as digits as its factorization.

25013123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 25013123 is about 5001.3121278321. The cubic root of 25013123 is about 292.4529273849.

Adding to 25013123 its reverse (32131052), we get a palindrome (57144175).

The spelling of 25013123 in words is "twenty-five million, thirteen thousand, one hundred twenty-three".