25261083508 has 24 divisors (see below), whose sum is σ = 45292464000. Its totient is φ = 12320479680.

The previous prime is 25261083493. The next prime is 25261083541. The reversal of 25261083508 is 80538016252.

It is a congruent number.

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, 1797493 + ... + 1811491.

It is an arithmetic number, because the mean of its divisors is an integer number (1887186000).

Almost surely, 2^25261083508 is an apocalyptic number.

It is an amenable number.

25261083508 is a deficient number, since it is larger than the sum of its proper divisors (20031380492).

25261083508 is a wasteful number, since it uses less digits than its factorization.

25261083508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25047 (or 25045 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 25261083508 in words is "twenty-five billion, two hundred sixty-one million, eighty-three thousand, five hundred eight".