25918672 has 30 divisors (see below), whose sum is σ = 54233942. Its totient is φ = 11928576.

The previous prime is 25918661. The next prime is 25918703. The reversal of 25918672 is 27681952.

It can be written as a sum of positive squares in 3 ways, for example, as 274576 + 25644096 = 524^2 + 5064^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 73248 + ... + 73600.

Almost surely, 2^25918672 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 25918672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27116971).

25918672 is an abundant number, since it is smaller than the sum of its proper divisors (28315270).

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

25918672 is an equidigital number, since it uses as much as digits as its factorization.

25918672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 368 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 25918672 is about 5091.0384009552. The cubic root of 25918672 is about 295.9403946209.

The spelling of 25918672 in words is "twenty-five million, nine hundred eighteen thousand, six hundred seventy-two".