561350771 has 4 divisors (see below), whose sum is σ = 561442200. Its totient is φ = 561259344.

The previous prime is 561350753. The next prime is 561350773. The reversal of 561350771 is 177053165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177053165 = 5 ⋅35410633.

It is a cyclic number.

It is not a de Polignac number, because 561350771 - 2¹⁴ = 561334387 is a prime.

It is a super-2 number, since 2×561350771² = 630229376204588882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561350773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35786 + ... + 49023.

It is an arithmetic number, because the mean of its divisors is an integer number (140360550).

Almost surely, 2^561350771 is an apocalyptic number.

561350771 is a deficient number, since it is larger than the sum of its proper divisors (91429).

561350771 is an equidigital number, since it uses as much as digits as its factorization.

561350771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91428.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 561350771 is about 23692.8421891507. The cubic root of 561350771 is about 824.9192555197.

The spelling of 561350771 in words is "five hundred sixty-one million, three hundred fifty thousand, seven hundred seventy-one".