25663345343 has 8 divisors (see below), whose sum is σ = 25927050240. Its totient is φ = 25400082520.

The previous prime is 25663345313. The next prime is 25663345361. The reversal of 25663345343 is 34354336652.

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 25663345343 - 2¹⁰ = 25663344319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25663345294 and 25663345303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25663345303) 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, 6818 + ... + 226656.

It is an arithmetic number, because the mean of its divisors is an integer number (3240881280).

Almost surely, 2^25663345343 is an apocalyptic number.

25663345343 is a deficient number, since it is larger than the sum of its proper divisors (263704897).

25663345343 is a wasteful number, since it uses less digits than its factorization.

25663345343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221037.

The product of its digits is 2332800, while the sum is 44.

The spelling of 25663345343 in words is "twenty-five billion, six hundred sixty-three million, three hundred forty-five thousand, three hundred forty-three".