56611061 has 4 divisors (see below), whose sum is σ = 60965772. Its totient is φ = 52256352.

The previous prime is 56611057. The next prime is 56611067. The reversal of 56611061 is 16011665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16011665 = 5 ⋅3202333.

It can be written as a sum of positive squares in 2 ways, for example, as 21446161 + 35164900 = 4631^2 + 5930^2 .

It is a cyclic number.

It is not a de Polignac number, because 56611061 - 2² = 56611057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56611061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611067) 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 3 ways as a sum of consecutive naturals, for example, 2177336 + ... + 2177361.

It is an arithmetic number, because the mean of its divisors is an integer number (15241443).

Almost surely, 2^56611061 is an apocalyptic number.

It is an amenable number.

56611061 is a deficient number, since it is larger than the sum of its proper divisors (4354711).

56611061 is a wasteful number, since it uses less digits than its factorization.

56611061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354710.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 56611061 is about 7524.0322301277. The cubic root of 56611061 is about 383.9727741295.

The spelling of 56611061 in words is "fifty-six million, six hundred eleven thousand, sixty-one".