25390672 has 20 divisors (see below), whose sum is σ = 49657536. Its totient is φ = 12575840.

The previous prime is 25390667. The next prime is 25390697. The reversal of 25390672 is 27609352.

It is a happy number.

It is a super-3 number, since 3×25390672³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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, 5704 + ... + 9127.

Almost surely, 2^25390672 is an apocalyptic number.

It is an amenable number.

25390672 is a deficient number, since it is larger than the sum of its proper divisors (24266864).

25390672 is a wasteful number, since it uses less digits than its factorization.

25390672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14946 (or 14940 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 25390672 is about 5038.9157563905. The cubic root of 25390672 is about 293.9170173192.

It can be divided in two parts, 25390 and 672, that added together give a palindrome (26062).

The spelling of 25390672 in words is "twenty-five million, three hundred ninety thousand, six hundred seventy-two".