551245325231 has 2 divisors, whose sum is σ = 551245325232. Its totient is φ = 551245325230.

The previous prime is 551245325221. The next prime is 551245325263. The reversal of 551245325231 is 132523542155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551245325231 - 2¹⁸ = 551245063087 is a prime.

It is a super-2 number, since 2×551245325231² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551245325221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275622662615 + 275622662616.

It is an arithmetic number, because the mean of its divisors is an integer number (275622662616).

Almost surely, 2^551245325231 is an apocalyptic number.

551245325231 is a deficient number, since it is larger than the sum of its proper divisors (1).

551245325231 is an equidigital number, since it uses as much as digits as its factorization.

551245325231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 180000, while the sum is 38.

Adding to 551245325231 its reverse (132523542155), we get a palindrome (683768867386).

The spelling of 551245325231 in words is "five hundred fifty-one billion, two hundred forty-five million, three hundred twenty-five thousand, two hundred thirty-one".