561359967 has 32 divisors (see below), whose sum is σ = 880627200. Its totient is φ = 311361408.

The previous prime is 561359951. The next prime is 561359977. The reversal of 561359967 is 769953165.

It is not a de Polignac number, because 561359967 - 2⁴ = 561359951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561359927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 550384 + ... + 551402.

It is an arithmetic number, because the mean of its divisors is an integer number (27519600).

Almost surely, 2^561359967 is an apocalyptic number.

561359967 is a deficient number, since it is larger than the sum of its proper divisors (319267233).

561359967 is a wasteful number, since it uses less digits than its factorization.

561359967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775.

The product of its digits is 1530900, while the sum is 51.

The square root of 561359967 is about 23693.0362554064. The cubic root of 561359967 is about 824.9237600805.

The spelling of 561359967 in words is "five hundred sixty-one million, three hundred fifty-nine thousand, nine hundred sixty-seven".