25327291 has 4 divisors (see below), whose sum is σ = 27629784. Its totient is φ = 23024800.

The previous prime is 25327283. The next prime is 25327307. The reversal of 25327291 is 19272352.

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 25327291 - 2³ = 25327283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25327231) 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, 1151230 + ... + 1151251.

It is an arithmetic number, because the mean of its divisors is an integer number (6907446).

Almost surely, 2^25327291 is an apocalyptic number.

25327291 is a deficient number, since it is larger than the sum of its proper divisors (2302493).

25327291 is a wasteful number, since it uses less digits than its factorization.

25327291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302492.

The product of its digits is 7560, while the sum is 31.

The square root of 25327291 is about 5032.6226761004. The cubic root of 25327291 is about 293.6722518850.

The spelling of 25327291 in words is "twenty-five million, three hundred twenty-seven thousand, two hundred ninety-one".