25325291 has 4 divisors (see below), whose sum is σ = 26815032. Its totient is φ = 23835552.

The previous prime is 25325281. The next prime is 25325303. The reversal of 25325291 is 19252352.

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 25325291 - 2⁶ = 25325227 is a prime.

It is a super-3 number, since 3×25325291³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25325281) 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, 744845 + ... + 744878.

It is an arithmetic number, because the mean of its divisors is an integer number (6703758).

Almost surely, 2^25325291 is an apocalyptic number.

25325291 is a deficient number, since it is larger than the sum of its proper divisors (1489741).

25325291 is a wasteful number, since it uses less digits than its factorization.

25325291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489740.

The product of its digits is 5400, while the sum is 29.

The square root of 25325291 is about 5032.4239686259. The cubic root of 25325291 is about 293.6645216207.

The spelling of 25325291 in words is "twenty-five million, three hundred twenty-five thousand, two hundred ninety-one".