25032480985 has 8 divisors (see below), whose sum is σ = 30050506440. Its totient is φ = 20018298624.

The previous prime is 25032480961. The next prime is 25032481007. The reversal of 25032480985 is 58908423052.

It can be written as a sum of positive squares in 4 ways, for example, as 3046708809 + 21985772176 = 55197^2 + 148276^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25032480985 - 2⁵ = 25032480953 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946422 + ... + 972511.

It is an arithmetic number, because the mean of its divisors is an integer number (3756313305).

Almost surely, 2^25032480985 is an apocalyptic number.

It is an amenable number.

25032480985 is a deficient number, since it is larger than the sum of its proper divisors (5018025455).

25032480985 is a wasteful number, since it uses less digits than its factorization.

25032480985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921547.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 25032480985 in words is "twenty-five billion, thirty-two million, four hundred eighty thousand, nine hundred eighty-five".