2551683565303 has 2 divisors, whose sum is σ = 2551683565304. Its totient is φ = 2551683565302.

The previous prime is 2551683565283. The next prime is 2551683565331. The reversal of 2551683565303 is 3035653861552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2551683565303 is a prime.

It is a super-2 number, since 2×2551683565303² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551683565103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275841782651 + 1275841782652.

It is an arithmetic number, because the mean of its divisors is an integer number (1275841782652).

Almost surely, 2^{2551683565303} is an apocalyptic number.

2551683565303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551683565303 is an equidigital number, since it uses as much as digits as its factorization.

2551683565303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 2551683565303 in words is "two trillion, five hundred fifty-one billion, six hundred eighty-three million, five hundred sixty-five thousand, three hundred three".