551701291 has 2 divisors, whose sum is σ = 551701292. Its totient is φ = 551701290.

The previous prime is 551701277. The next prime is 551701303. The reversal of 551701291 is 192107155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551701291 is a prime.

It is not a weakly prime, because it can be changed into another prime (551705291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275850645 + 275850646.

It is an arithmetic number, because the mean of its divisors is an integer number (275850646).

Almost surely, 2^551701291 is an apocalyptic number.

551701291 is a deficient number, since it is larger than the sum of its proper divisors (1).

551701291 is an equidigital number, since it uses as much as digits as its factorization.

551701291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 551701291 is about 23488.3224390334. The cubic root of 551701291 is about 820.1651912882.

The spelling of 551701291 in words is "five hundred fifty-one million, seven hundred one thousand, two hundred ninety-one".