25234691 has 4 divisors (see below), whose sum is σ = 25479792. Its totient is φ = 24989592.

The previous prime is 25234637. The next prime is 25234757. The reversal of 25234691 is 19643252.

It is a happy number.

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 25234691 - 2¹⁴ = 25218307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25234631) 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, 122396 + ... + 122601.

It is an arithmetic number, because the mean of its divisors is an integer number (6369948).

Almost surely, 2^25234691 is an apocalyptic number.

25234691 is a deficient number, since it is larger than the sum of its proper divisors (245101).

25234691 is a wasteful number, since it uses less digits than its factorization.

25234691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245100.

The product of its digits is 12960, while the sum is 32.

The square root of 25234691 is about 5023.4142771625. The cubic root of 25234691 is about 293.3139129992.

It can be divided in two parts, 252 and 34691, that added together give a palindrome (34943).

The spelling of 25234691 in words is "twenty-five million, two hundred thirty-four thousand, six hundred ninety-one".