561357763 has 2 divisors, whose sum is σ = 561357764. Its totient is φ = 561357762.

The previous prime is 561357749. The next prime is 561357767. The reversal of 561357763 is 367753165.

It is a happy number.

561357763 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 is a cyclic number.

It is not a de Polignac number, because 561357763 - 2¹⁷ = 561226691 is a prime.

It is not a weakly prime, because it can be changed into another prime (561357767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280678881 + 280678882.

It is an arithmetic number, because the mean of its divisors is an integer number (280678882).

Almost surely, 2^561357763 is an apocalyptic number.

561357763 is a deficient number, since it is larger than the sum of its proper divisors (1).

561357763 is an equidigital number, since it uses as much as digits as its factorization.

561357763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 43.

The square root of 561357763 is about 23692.9897438040. The cubic root of 561357763 is about 824.9226804795.

The spelling of 561357763 in words is "five hundred sixty-one million, three hundred fifty-seven thousand, seven hundred sixty-three".