5243223391 has 12 divisors (see below), whose sum is σ = 6153242112. Its totient is φ = 4454415168.

The previous prime is 5243223383. The next prime is 5243223421. The reversal of 5243223391 is 1933223425.

It is not a de Polignac number, because 5243223391 - 2³ = 5243223383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243223301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 467935 + ... + 479008.

It is an arithmetic number, because the mean of its divisors is an integer number (512770176).

Almost surely, 2^5243223391 is an apocalyptic number.

5243223391 is a deficient number, since it is larger than the sum of its proper divisors (910018721).

5243223391 is a wasteful number, since it uses less digits than its factorization.

5243223391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947070 (or 947063 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

The square root of 5243223391 is about 72410.1055861680. The cubic root of 5243223391 is about 1737.2652013066.

Adding to 5243223391 its sum of digits (34), we get a palindrome (5243223425).

The spelling of 5243223391 in words is "five billion, two hundred forty-three million, two hundred twenty-three thousand, three hundred ninety-one".