4551531500231 has 2 divisors, whose sum is σ = 4551531500232. Its totient is φ = 4551531500230.

The previous prime is 4551531500213. The next prime is 4551531500251. The reversal of 4551531500231 is 1320051351554.

Together with previous prime (4551531500213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4551531500231 - 2⁴² = 153484989127 is a prime.

It is a super-2 number, since 2×4551531500231² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 4551531500191 and 4551531500200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4551531500251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2275765750115 + 2275765750116.

It is an arithmetic number, because the mean of its divisors is an integer number (2275765750116).

Almost surely, 2^{4551531500231} is an apocalyptic number.

4551531500231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4551531500231 is an equidigital number, since it uses as much as digits as its factorization.

4551531500231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 4551531500231 its reverse (1320051351554), we get a palindrome (5871582851785).

The spelling of 4551531500231 in words is "four trillion, five hundred fifty-one billion, five hundred thirty-one million, five hundred thousand, two hundred thirty-one".