25679472 has 80 divisors (see below), whose sum is σ = 81661440. Its totient is φ = 6771456.

The previous prime is 25679461. The next prime is 25679473. The reversal of 25679472 is 27497652.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25679473) 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 15 ways as a sum of consecutive naturals, for example, 1429 + ... + 7307.

It is an arithmetic number, because the mean of its divisors is an integer number (1020768).

Almost surely, 2^25679472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25679472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40830720).

25679472 is an abundant number, since it is smaller than the sum of its proper divisors (55981968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25679472 is a wasteful number, since it uses less digits than its factorization.

25679472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5910 (or 5904 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 25679472 is about 5067.4916872157. The cubic root of 25679472 is about 295.0271812549.

The spelling of 25679472 in words is "twenty-five million, six hundred seventy-nine thousand, four hundred seventy-two".