5206566403 has 2 divisors, whose sum is σ = 5206566404. Its totient is φ = 5206566402.

The previous prime is 5206566401. The next prime is 5206566427. The reversal of 5206566403 is 3046656025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5206566403 - 2¹ = 5206566401 is a prime.

Together with 5206566401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5206566401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2603283201 + 2603283202.

It is an arithmetic number, because the mean of its divisors is an integer number (2603283202).

Almost surely, 2^5206566403 is an apocalyptic number.

5206566403 is a deficient number, since it is larger than the sum of its proper divisors (1).

5206566403 is an equidigital number, since it uses as much as digits as its factorization.

5206566403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 5206566403 is about 72156.5409578369. The cubic root of 5206566403 is about 1733.2071443350.

The spelling of 5206566403 in words is "five billion, two hundred six million, five hundred sixty-six thousand, four hundred three".