25138759 has 2 divisors, whose sum is σ = 25138760. Its totient is φ = 25138758.

The previous prime is 25138753. The next prime is 25138783. The reversal of 25138759 is 95783152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25138759 - 2⁵ = 25138727 is a prime.

It is a super-3 number, since 3×25138759³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25138753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12569379 + 12569380.

It is an arithmetic number, because the mean of its divisors is an integer number (12569380).

Almost surely, 2^25138759 is an apocalyptic number.

25138759 is a deficient number, since it is larger than the sum of its proper divisors (1).

25138759 is an equidigital number, since it uses as much as digits as its factorization.

25138759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 40.

The square root of 25138759 is about 5013.8566991888. The cubic root of 25138759 is about 292.9417543910.

The spelling of 25138759 in words is "twenty-five million, one hundred thirty-eight thousand, seven hundred fifty-nine".