56011061 has 4 divisors (see below), whose sum is σ = 56029452. Its totient is φ = 55992672.

The previous prime is 56011057. The next prime is 56011063. The reversal of 56011061 is 16011065.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39250225 + 16760836 = 6265^2 + 4094^2 .

It is a cyclic number.

It is not a de Polignac number, because 56011061 - 2² = 56011057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56011063) 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, 3416 + ... + 11121.

It is an arithmetic number, because the mean of its divisors is an integer number (14007363).

Almost surely, 2^56011061 is an apocalyptic number.

It is an amenable number.

56011061 is a deficient number, since it is larger than the sum of its proper divisors (18391).

56011061 is a wasteful number, since it uses less digits than its factorization.

56011061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 56011061 is about 7484.0537812071. The cubic root of 56011061 is about 382.6114241008.

The spelling of 56011061 in words is "fifty-six million, eleven thousand, sixty-one".