25116709 has 4 divisors (see below), whose sum is σ = 25183360. Its totient is φ = 25050060.

The previous prime is 25116683. The next prime is 25116731. The reversal of 25116709 is 90761152.

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 25116709 - 2⁵ = 25116677 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 (25116109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32757 + ... + 33514.

It is an arithmetic number, because the mean of its divisors is an integer number (6295840).

Almost surely, 2^25116709 is an apocalyptic number.

It is an amenable number.

25116709 is a deficient number, since it is larger than the sum of its proper divisors (66651).

25116709 is an equidigital number, since it uses as much as digits as its factorization.

25116709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66650.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 25116709 is about 5011.6573107107. The cubic root of 25116709 is about 292.8560798466.

The spelling of 25116709 in words is "twenty-five million, one hundred sixteen thousand, seven hundred nine".