564633551 has 2 divisors, whose sum is σ = 564633552. Its totient is φ = 564633550.

The previous prime is 564633523. The next prime is 564633557. The reversal of 564633551 is 155336465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 564633551 - 2²² = 560439247 is a prime.

It is a super-2 number, since 2×564633551² = 637622093829739202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564633557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282316775 + 282316776.

It is an arithmetic number, because the mean of its divisors is an integer number (282316776).

Almost surely, 2^564633551 is an apocalyptic number.

564633551 is a deficient number, since it is larger than the sum of its proper divisors (1).

564633551 is an equidigital number, since it uses as much as digits as its factorization.

564633551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 38.

The square root of 564633551 is about 23762.0190850862. The cubic root of 564633551 is about 826.5241739925.

The spelling of 564633551 in words is "five hundred sixty-four million, six hundred thirty-three thousand, five hundred fifty-one".