25265666402245 has 8 divisors (see below), whose sum is σ = 30341751090840. Its totient is φ = 20197232183040.

The previous prime is 25265666402239. The next prime is 25265666402363. The reversal of 25265666402245 is 54220466656252.

It can be written as a sum of positive squares in 4 ways, for example, as 1631114676801 + 23634551725444 = 1277151^2 + 4861538^2 .

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

It is not a de Polignac number, because 25265666402245 - 2³ = 25265666402237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1912610080 + ... + 1912623289.

It is an arithmetic number, because the mean of its divisors is an integer number (3792718886355).

Almost surely, 2^{25265666402245} is an apocalyptic number.

It is an amenable number.

25265666402245 is a deficient number, since it is larger than the sum of its proper divisors (5076084688595).

25265666402245 is a wasteful number, since it uses less digits than its factorization.

25265666402245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825234695.

The product of its (nonzero) digits is 41472000, while the sum is 55.

The spelling of 25265666402245 in words is "twenty-five trillion, two hundred sixty-five billion, six hundred sixty-six million, four hundred two thousand, two hundred forty-five".