25616923 has 4 divisors (see below), whose sum is σ = 26241768. Its totient is φ = 24992080.

The previous prime is 25616911. The next prime is 25616939. The reversal of 25616923 is 32961652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25616923 - 2¹³ = 25608731 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25616953) 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, 312361 + ... + 312442.

It is an arithmetic number, because the mean of its divisors is an integer number (6560442).

Almost surely, 2^25616923 is an apocalyptic number.

25616923 is a deficient number, since it is larger than the sum of its proper divisors (624845).

25616923 is an equidigital number, since it uses as much as digits as its factorization.

25616923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624844.

The product of its digits is 19440, while the sum is 34.

The square root of 25616923 is about 5061.3163307582. The cubic root of 25616923 is about 294.7874481540.

The spelling of 25616923 in words is "twenty-five million, six hundred sixteen thousand, nine hundred twenty-three".