56111061 has 4 divisors (see below), whose sum is σ = 74814752. Its totient is φ = 37407372.

The previous prime is 56111057. The next prime is 56111063. The reversal of 56111061 is 16011165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56111061 - 2² = 56111057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56111063) 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, 9351841 + ... + 9351846.

It is an arithmetic number, because the mean of its divisors is an integer number (18703688).

Almost surely, 2^56111061 is an apocalyptic number.

It is an amenable number.

56111061 is a deficient number, since it is larger than the sum of its proper divisors (18703691).

56111061 is a wasteful number, since it uses less digits than its factorization.

56111061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18703690.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 56111061 is about 7490.7316732079. The cubic root of 56111061 is about 382.8389886466.

The spelling of 56111061 in words is "fifty-six million, one hundred eleven thousand, sixty-one".