25630673 has 4 divisors (see below), whose sum is σ = 25870320. Its totient is φ = 25391028.

The previous prime is 25630643. The next prime is 25630687. The reversal of 25630673 is 37603652.

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 25630673 - 2¹⁸ = 25368529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25630643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119663 + ... + 119876.

It is an arithmetic number, because the mean of its divisors is an integer number (6467580).

Almost surely, 2^25630673 is an apocalyptic number.

It is an amenable number.

25630673 is a deficient number, since it is larger than the sum of its proper divisors (239647).

25630673 is a wasteful number, since it uses less digits than its factorization.

25630673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239646.

The product of its (nonzero) digits is 22680, while the sum is 32.

The square root of 25630673 is about 5062.6744908200. The cubic root of 25630673 is about 294.8401815550.

The spelling of 25630673 in words is "twenty-five million, six hundred thirty thousand, six hundred seventy-three".