25214891 has 8 divisors (see below), whose sum is σ = 28091280. Its totient is φ = 22472352.

The previous prime is 25214879. The next prime is 25214921. The reversal of 25214891 is 19841252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25214891 - 2¹⁴ = 25198507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25214821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33065 + ... + 33818.

It is an arithmetic number, because the mean of its divisors is an integer number (3511410).

Almost surely, 2^25214891 is an apocalyptic number.

25214891 is a deficient number, since it is larger than the sum of its proper divisors (2876389).

25214891 is a wasteful number, since it uses less digits than its factorization.

25214891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66925.

The product of its digits is 5760, while the sum is 32.

The square root of 25214891 is about 5021.4431192636. The cubic root of 25214891 is about 293.2371782231.

The spelling of 25214891 in words is "twenty-five million, two hundred fourteen thousand, eight hundred ninety-one".