25880766 has 16 divisors (see below), whose sum is σ = 54806544. Its totient is φ = 8119424.

The previous prime is 25880761. The next prime is 25880791. The reversal of 25880766 is 66708852.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25880761) 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, 126765 + ... + 126968.

It is an arithmetic number, because the mean of its divisors is an integer number (3425409).

Almost surely, 2^25880766 is an apocalyptic number.

25880766 is the 3218-th centered pentagonal number.

25880766 is an abundant number, since it is smaller than the sum of its proper divisors (28925778).

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

25880766 is a wasteful number, since it uses less digits than its factorization.

25880766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253755.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 25880766 is about 5087.3142226523. The cubic root of 25880766 is about 295.7960535095.

The spelling of 25880766 in words is "twenty-five million, eight hundred eighty thousand, seven hundred sixty-six".