25260280 has 16 divisors (see below), whose sum is σ = 56835720. Its totient is φ = 10104096.

The previous prime is 25260269. The next prime is 25260281. The reversal of 25260280 is 8206252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25260281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315714 + ... + 315793.

Almost surely, 2^25260280 is an apocalyptic number.

25260280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25260280 is an abundant number, since it is smaller than the sum of its proper divisors (31575440).

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

25260280 is a wasteful number, since it uses less digits than its factorization.

25260280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631518 (or 631514 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 25260280 is about 5025.9606047004. The cubic root of 25260280 is about 293.4130235735.

The spelling of 25260280 in words is "twenty-five million, two hundred sixty thousand, two hundred eighty".