25216927 has 4 divisors (see below), whose sum is σ = 25832016. Its totient is φ = 24601840.

The previous prime is 25216907. The next prime is 25216931. The reversal of 25216927 is 72961252.

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 25216927 - 2¹¹ = 25214879 is a prime.

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

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 25216892 and 25216901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25216907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307483 + ... + 307564.

It is an arithmetic number, because the mean of its divisors is an integer number (6458004).

Almost surely, 2^25216927 is an apocalyptic number.

25216927 is a deficient number, since it is larger than the sum of its proper divisors (615089).

25216927 is an equidigital number, since it uses as much as digits as its factorization.

25216927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615088.

The product of its digits is 15120, while the sum is 34.

The square root of 25216927 is about 5021.6458457362. The cubic root of 25216927 is about 293.2450705809.

The spelling of 25216927 in words is "twenty-five million, two hundred sixteen thousand, nine hundred twenty-seven".