551156603273 has 2 divisors, whose sum is σ = 551156603274. Its totient is φ = 551156603272.

The previous prime is 551156603197. The next prime is 551156603293. The reversal of 551156603273 is 372306651155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 379219492864 + 171937110409 = 615808^2 + 414653^2 .

It is a cyclic number.

It is not a de Polignac number, because 551156603273 - 2¹⁴ = 551156586889 is a prime.

It is a super-2 number, since 2×551156603273² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (551156603293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275578301636 + 275578301637.

It is an arithmetic number, because the mean of its divisors is an integer number (275578301637).

Almost surely, 2^551156603273 is an apocalyptic number.

It is an amenable number.

551156603273 is a deficient number, since it is larger than the sum of its proper divisors (1).

551156603273 is an equidigital number, since it uses as much as digits as its factorization.

551156603273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 551156603273 in words is "five hundred fifty-one billion, one hundred fifty-six million, six hundred three thousand, two hundred seventy-three".