551266477 has 2 divisors, whose sum is σ = 551266478. Its totient is φ = 551266476.

The previous prime is 551266447. The next prime is 551266483. The reversal of 551266477 is 774662155.

551266477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386554921 + 164711556 = 19661^2 + 12834^2 .

It is a cyclic number.

It is not a de Polignac number, because 551266477 - 2⁷ = 551266349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551266447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275633238 + 275633239.

It is an arithmetic number, because the mean of its divisors is an integer number (275633239).

Almost surely, 2^551266477 is an apocalyptic number.

It is an amenable number.

551266477 is a deficient number, since it is larger than the sum of its proper divisors (1).

551266477 is an equidigital number, since it uses as much as digits as its factorization.

551266477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The square root of 551266477 is about 23479.0646534311. The cubic root of 551266477 is about 819.9496682373.

The spelling of 551266477 in words is "five hundred fifty-one million, two hundred sixty-six thousand, four hundred seventy-seven".