25372499 has 2 divisors, whose sum is σ = 25372500. Its totient is φ = 25372498.

The previous prime is 25372493. The next prime is 25372547. The reversal of 25372499 is 99427352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25372499 - 2²⁴ = 8595283 is a prime.

It is not a weakly prime, because it can be changed into another prime (25372493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12686249 + 12686250.

It is an arithmetic number, because the mean of its divisors is an integer number (12686250).

Almost surely, 2^25372499 is an apocalyptic number.

25372499 is a deficient number, since it is larger than the sum of its proper divisors (1).

25372499 is an equidigital number, since it uses as much as digits as its factorization.

25372499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 25372499 is about 5037.1121686935. The cubic root of 25372499 is about 293.8468783223.

The spelling of 25372499 in words is "twenty-five million, three hundred seventy-two thousand, four hundred ninety-nine".