25690014 has 128 divisors (see below), whose sum is σ = 71040000. Its totient is φ = 6858432.

The previous prime is 25690003. The next prime is 25690039. The reversal of 25690014 is 41009652.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25690014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 351882 + ... + 351954.

It is an arithmetic number, because the mean of its divisors is an integer number (555000).

Almost surely, 2^25690014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25690014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35520000).

25690014 is an abundant number, since it is smaller than the sum of its proper divisors (45349986).

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

25690014 is a wasteful number, since it uses less digits than its factorization.

25690014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 25690014 is about 5068.5317400604. The cubic root of 25690014 is about 295.0675474930.

Adding to 25690014 its reverse (41009652), we get a palindrome (66699666).

The spelling of 25690014 in words is "twenty-five million, six hundred ninety thousand, fourteen".