5243623459 has 2 divisors, whose sum is σ = 5243623460. Its totient is φ = 5243623458.

The previous prime is 5243623457. The next prime is 5243623543. The reversal of 5243623459 is 9543263425.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5243623459 - 2¹ = 5243623457 is a prime.

It is a super-4 number, since 4×5243623459⁴ (a number of 40 digits) contains 4444 as substring.

Together with 5243623457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5243623457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621811729 + 2621811730.

It is an arithmetic number, because the mean of its divisors is an integer number (2621811730).

Almost surely, 2^5243623459 is an apocalyptic number.

5243623459 is a deficient number, since it is larger than the sum of its proper divisors (1).

5243623459 is an equidigital number, since it uses as much as digits as its factorization.

5243623459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 43.

The square root of 5243623459 is about 72412.8680484346. The cubic root of 5243623459 is about 1737.3093857383.

The spelling of 5243623459 in words is "five billion, two hundred forty-three million, six hundred twenty-three thousand, four hundred fifty-nine".