561111052 has 6 divisors (see below), whose sum is σ = 981944348. Its totient is φ = 280555524.

The previous prime is 561111043. The next prime is 561111079. The reversal of 561111052 is 250111165.

It is a happy number.

It is a super-2 number, since 2×561111052² = 629691225353093408, 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 as a sum of consecutive naturals, namely, 70138878 + ... + 70138885.

Almost surely, 2^561111052 is an apocalyptic number.

It is an amenable number.

561111052 is a deficient number, since it is larger than the sum of its proper divisors (420833296).

561111052 is a wasteful number, since it uses less digits than its factorization.

561111052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140277767 (or 140277765 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 22.

The square root of 561111052 is about 23687.7827582068. The cubic root of 561111052 is about 824.8018144088.

The spelling of 561111052 in words is "five hundred sixty-one million, one hundred eleven thousand, fifty-two".