25672669 has 32 divisors (see below), whose sum is σ = 31850496. Its totient is φ = 20401920.

The previous prime is 25672657. The next prime is 25672693. The reversal of 25672669 is 96627652.

It is not a de Polignac number, because 25672669 - 2¹¹ = 25670621 is a prime.

It is a super-2 number, since 2×25672669² = 1318171867167122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25672609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202084 + ... + 202210.

It is an arithmetic number, because the mean of its divisors is an integer number (995328).

Almost surely, 2^25672669 is an apocalyptic number.

It is an amenable number.

25672669 is a deficient number, since it is larger than the sum of its proper divisors (6177827).

25672669 is a wasteful number, since it uses less digits than its factorization.

25672669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its digits is 272160, while the sum is 43.

The square root of 25672669 is about 5066.8204033694. The cubic root of 25672669 is about 295.0011261089.

The spelling of 25672669 in words is "twenty-five million, six hundred seventy-two thousand, six hundred sixty-nine".