565028551 has 2 divisors, whose sum is σ = 565028552. Its totient is φ = 565028550.

The previous prime is 565028549. The next prime is 565028701. The reversal of 565028551 is 155820565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 565028551 - 2¹ = 565028549 is a prime.

Together with 565028549, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 565028551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565028531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282514275 + 282514276.

It is an arithmetic number, because the mean of its divisors is an integer number (282514276).

Almost surely, 2^565028551 is an apocalyptic number.

565028551 is a deficient number, since it is larger than the sum of its proper divisors (1).

565028551 is an equidigital number, since it uses as much as digits as its factorization.

565028551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 37.

The square root of 565028551 is about 23770.3292152212. The cubic root of 565028551 is about 826.7168658996.

The spelling of 565028551 in words is "five hundred sixty-five million, twenty-eight thousand, five hundred fifty-one".