25280326628 has 24 divisors (see below), whose sum is σ = 46640009472. Its totient is φ = 11965941504.

The previous prime is 25280326619. The next prime is 25280326637. The reversal of 25280326628 is 82662308252.

It is an interprime number because it is at equal distance from previous prime (25280326619) and next prime (25280326637).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407500 + ... + 1425347.

It is an arithmetic number, because the mean of its divisors is an integer number (1943333728).

Almost surely, 2^25280326628 is an apocalyptic number.

It is an amenable number.

25280326628 is a deficient number, since it is larger than the sum of its proper divisors (21359682844).

25280326628 is a wasteful number, since it uses less digits than its factorization.

25280326628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832971 (or 2832969 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 25280326628 in words is "twenty-five billion, two hundred eighty million, three hundred twenty-six thousand, six hundred twenty-eight".