25066321 has 8 divisors (see below), whose sum is σ = 29571584. Its totient is φ = 20792160.

The previous prime is 25066319. The next prime is 25066331. The reversal of 25066321 is 12366052.

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 25066321 - 2¹ = 25066319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25066331) 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, 57540 + ... + 57973.

It is an arithmetic number, because the mean of its divisors is an integer number (3696448).

Almost surely, 2^25066321 is an apocalyptic number.

It is an amenable number.

25066321 is a deficient number, since it is larger than the sum of its proper divisors (4505263).

25066321 is a wasteful number, since it uses less digits than its factorization.

25066321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115551.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 25066321 is about 5006.6277073495. The cubic root of 25066321 is about 292.6601105543.

The spelling of 25066321 in words is "twenty-five million, sixty-six thousand, three hundred twenty-one".