25876780 has 12 divisors (see below), whose sum is σ = 54341280. Its totient is φ = 10350704.

The previous prime is 25876759. The next prime is 25876783. The reversal of 25876780 is 8767852.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25876783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646900 + ... + 646939.

It is an arithmetic number, because the mean of its divisors is an integer number (4528440).

Almost surely, 2^25876780 is an apocalyptic number.

25876780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25876780 is an abundant number, since it is smaller than the sum of its proper divisors (28464500).

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

25876780 is a wasteful number, since it uses less digits than its factorization.

25876780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293848 (or 1293846 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 25876780 is about 5086.9224487896. The cubic root of 25876780 is about 295.7808671531.

The spelling of 25876780 in words is "twenty-five million, eight hundred seventy-six thousand, seven hundred eighty".