25276880 has 20 divisors (see below), whose sum is σ = 58768932. Its totient is φ = 10110720.

The previous prime is 25276871. The next prime is 25276891. The reversal of 25276880 is 8867252.

It can be written as a sum of positive squares in 2 ways, for example, as 4227136 + 21049744 = 2056^2 + 4588^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157901 + ... + 158060.

Almost surely, 2^25276880 is an apocalyptic number.

25276880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25276880 is an abundant number, since it is smaller than the sum of its proper divisors (33492052).

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

25276880 is a wasteful number, since it uses less digits than its factorization.

25276880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315974 (or 315968 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 25276880 is about 5027.6117590761. The cubic root of 25276880 is about 293.4772824237.

The spelling of 25276880 in words is "twenty-five million, two hundred seventy-six thousand, eight hundred eighty".