551656463 has 2 divisors, whose sum is σ = 551656464. Its totient is φ = 551656462.

The previous prime is 551656433. The next prime is 551656487. The reversal of 551656463 is 364656155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551656463 - 2¹⁰ = 551655439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551656463.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551656423) 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, 275828231 + 275828232.

It is an arithmetic number, because the mean of its divisors is an integer number (275828232).

Almost surely, 2^551656463 is an apocalyptic number.

551656463 is a deficient number, since it is larger than the sum of its proper divisors (1).

551656463 is an equidigital number, since it uses as much as digits as its factorization.

551656463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 41.

The square root of 551656463 is about 23487.3681582250. The cubic root of 551656463 is about 820.1429767544.

The spelling of 551656463 in words is "five hundred fifty-one million, six hundred fifty-six thousand, four hundred sixty-three".