5423244521 has 2 divisors, whose sum is σ = 5423244522. Its totient is φ = 5423244520.

The previous prime is 5423244517. The next prime is 5423244529. The reversal of 5423244521 is 1254423245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5024683225 + 398561296 = 70885^2 + 19964^2 .

It is a cyclic number.

It is not a de Polignac number, because 5423244521 - 2² = 5423244517 is a prime.

It is a super-2 number, since 2×5423244521² = 58823162269113038882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5423244529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2711622260 + 2711622261.

It is an arithmetic number, because the mean of its divisors is an integer number (2711622261).

Almost surely, 2^5423244521 is an apocalyptic number.

It is an amenable number.

5423244521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5423244521 is an equidigital number, since it uses as much as digits as its factorization.

5423244521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 32.

The square root of 5423244521 is about 73642.6813811121. The cubic root of 5423244521 is about 1756.9243503893.

Adding to 5423244521 its reverse (1254423245), we get a palindrome (6677667766).

The spelling of 5423244521 in words is "five billion, four hundred twenty-three million, two hundred forty-four thousand, five hundred twenty-one".