551272291 has 2 divisors, whose sum is σ = 551272292. Its totient is φ = 551272290.

The previous prime is 551272283. The next prime is 551272297. The reversal of 551272291 is 192272155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551272291 - 2³ = 551272283 is a prime.

It is a super-2 number, since 2×551272291² = 607802277648777362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (551272297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275636145 + 275636146.

It is an arithmetic number, because the mean of its divisors is an integer number (275636146).

Almost surely, 2^551272291 is an apocalyptic number.

551272291 is a deficient number, since it is larger than the sum of its proper divisors (1).

551272291 is an equidigital number, since it uses as much as digits as its factorization.

551272291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 551272291 is about 23479.1884655326. The cubic root of 551272291 is about 819.9525507940.

The spelling of 551272291 in words is "five hundred fifty-one million, two hundred seventy-two thousand, two hundred ninety-one".