25669072 has 60 divisors (see below), whose sum is σ = 58817664. Its totient is φ = 10757760.

The previous prime is 25669001. The next prime is 25669073. The reversal of 25669072 is 27096652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25669073) 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 11 ways as a sum of consecutive naturals, for example, 29313 + ... + 30175.

Almost surely, 2^25669072 is an apocalyptic number.

25669072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25669072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29408832).

25669072 is an abundant number, since it is smaller than the sum of its proper divisors (33148592).

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

25669072 is a wasteful number, since it uses less digits than its factorization.

25669072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 25669072 is about 5066.4654346003. The cubic root of 25669072 is about 294.9873479205.

The spelling of 25669072 in words is "twenty-five million, six hundred sixty-nine thousand, seventy-two".