25674321 has 4 divisors (see below), whose sum is σ = 34232432. Its totient is φ = 17116212.

The previous prime is 25674317. The next prime is 25674331. The reversal of 25674321 is 12347652.

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 not a de Polignac number, because 25674321 - 2² = 25674317 is a prime.

It is a super-2 number, since 2×25674321² = 1318341517622082, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25674331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4279051 + ... + 4279056.

It is an arithmetic number, because the mean of its divisors is an integer number (8558108).

Almost surely, 2^25674321 is an apocalyptic number.

It is an amenable number.

25674321 is a deficient number, since it is larger than the sum of its proper divisors (8558111).

25674321 is an equidigital number, since it uses as much as digits as its factorization.

25674321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8558110.

The product of its digits is 10080, while the sum is 30.

The square root of 25674321 is about 5066.9834221162. The cubic root of 25674321 is about 295.0074536085.

The spelling of 25674321 in words is "twenty-five million, six hundred seventy-four thousand, three hundred twenty-one".