25312302255561 has 8 divisors (see below), whose sum is σ = 33766518912864. Its totient is φ = 16866476884320.

The previous prime is 25312302255529. The next prime is 25312302255601. The reversal of 25312302255561 is 16555220321352.

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

It is not a de Polignac number, because 25312302255561 - 2⁵ = 25312302255529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25312302255521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097814476 + ... + 2097826541.

It is an arithmetic number, because the mean of its divisors is an integer number (4220814864108).

Almost surely, 2^{25312302255561} is an apocalyptic number.

It is an amenable number.

25312302255561 is a deficient number, since it is larger than the sum of its proper divisors (8454216657303).

25312302255561 is a wasteful number, since it uses less digits than its factorization.

25312302255561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195643031.

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 25312302255561 in words is "twenty-five trillion, three hundred twelve billion, three hundred two million, two hundred fifty-five thousand, five hundred sixty-one".