561135722 has 16 divisors (see below), whose sum is σ = 963188160. Its totient is φ = 240176448.

The previous prime is 561135719. The next prime is 561135763. The reversal of 561135722 is 227531165.

It is a super-2 number, since 2×561135722² = 629746597008922568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14447 + ... + 36482.

It is an arithmetic number, because the mean of its divisors is an integer number (60199260).

Almost surely, 2^561135722 is an apocalyptic number.

561135722 is a deficient number, since it is larger than the sum of its proper divisors (402052438).

561135722 is a wasteful number, since it uses less digits than its factorization.

561135722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51725.

The product of its digits is 12600, while the sum is 32.

The square root of 561135722 is about 23688.3034850535. The cubic root of 561135722 is about 824.8139020710.

Adding to 561135722 its reverse (227531165), we get a palindrome (788666887).

The spelling of 561135722 in words is "five hundred sixty-one million, one hundred thirty-five thousand, seven hundred twenty-two".