25980726 has 16 divisors (see below), whose sum is σ = 55018224. Its totient is φ = 8150784.

The previous prime is 25980719. The next prime is 25980727. The reversal of 25980726 is 62708952.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25980727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127255 + ... + 127458.

It is an arithmetic number, because the mean of its divisors is an integer number (3438639).

Almost surely, 2^25980726 is an apocalyptic number.

25980726 is an abundant number, since it is smaller than the sum of its proper divisors (29037498).

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

25980726 is a wasteful number, since it uses less digits than its factorization.

25980726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254735.

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

The square root of 25980726 is about 5097.1291920060. The cubic root of 25980726 is about 296.1763847069.

The spelling of 25980726 in words is "twenty-five million, nine hundred eighty thousand, seven hundred twenty-six".