25264321 has 4 divisors (see below), whose sum is σ = 25289152. Its totient is φ = 25239492.

The previous prime is 25264313. The next prime is 25264361. The reversal of 25264321 is 12346252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25264321 - 2³ = 25264313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25264301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10821 + ... + 12946.

It is an arithmetic number, because the mean of its divisors is an integer number (6322288).

Almost surely, 2^25264321 is an apocalyptic number.

It is an amenable number.

25264321 is a deficient number, since it is larger than the sum of its proper divisors (24831).

25264321 is a wasteful number, since it uses less digits than its factorization.

25264321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24830.

The product of its digits is 2880, while the sum is 25.

The square root of 25264321 is about 5026.3626013251. The cubic root of 25264321 is about 293.4286689372.

The spelling of 25264321 in words is "twenty-five million, two hundred sixty-four thousand, three hundred twenty-one".