5321543551 has 2 divisors, whose sum is σ = 5321543552. Its totient is φ = 5321543550.

The previous prime is 5321543543. The next prime is 5321543621. The reversal of 5321543551 is 1553451235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5321543551 - 2³ = 5321543543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5321543501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2660771775 + 2660771776.

It is an arithmetic number, because the mean of its divisors is an integer number (2660771776).

Almost surely, 2^5321543551 is an apocalyptic number.

5321543551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5321543551 is an equidigital number, since it uses as much as digits as its factorization.

5321543551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45000, while the sum is 34.

The square root of 5321543551 is about 72948.9105538938. The cubic root of 5321543551 is about 1745.8725642179.

Adding to 5321543551 its reverse (1553451235), we get a palindrome (6874994786).

The spelling of 5321543551 in words is "five billion, three hundred twenty-one million, five hundred forty-three thousand, five hundred fifty-one".