25682790 has 32 divisors (see below), whose sum is σ = 70444800. Its totient is φ = 5870304.

The previous prime is 25682779. The next prime is 25682791. The reversal of 25682790 is 9728652.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25682791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60940 + ... + 61359.

It is an arithmetic number, because the mean of its divisors is an integer number (2201400).

Almost surely, 2^25682790 is an apocalyptic number.

25682790 is an abundant number, since it is smaller than the sum of its proper divisors (44762010).

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

25682790 is a wasteful number, since it uses less digits than its factorization.

25682790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122316.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 25682790 is about 5067.8190575434. The cubic root of 25682790 is about 295.0398873577.

The spelling of 25682790 in words is "twenty-five million, six hundred eighty-two thousand, seven hundred ninety".