25023709 has 4 divisors (see below), whose sum is σ = 25112416. Its totient is φ = 24935004.

The previous prime is 25023707. The next prime is 25023731. The reversal of 25023709 is 90732052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25023709 - 2¹ = 25023707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25023707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43929 + ... + 44494.

It is an arithmetic number, because the mean of its divisors is an integer number (6278104).

Almost surely, 2^25023709 is an apocalyptic number.

It is an amenable number.

25023709 is a deficient number, since it is larger than the sum of its proper divisors (88707).

25023709 is an equidigital number, since it uses as much as digits as its factorization.

25023709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88706.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 25023709 is about 5002.3703381497. The cubic root of 25023709 is about 292.4941786652.

The spelling of 25023709 in words is "twenty-five million, twenty-three thousand, seven hundred nine".