56130061 has 4 divisors (see below), whose sum is σ = 60447772. Its totient is φ = 51812352.

The previous prime is 56130059. The next prime is 56130071. The reversal of 56130061 is 16003165.

56130061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 36602500 + 19527561 = 6050^2 + 4419^2 .

It is a cyclic number.

It is not a de Polignac number, because 56130061 - 2¹ = 56130059 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 (56130001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158836 + ... + 2158861.

It is an arithmetic number, because the mean of its divisors is an integer number (15111943).

Almost surely, 2^56130061 is an apocalyptic number.

It is an amenable number.

56130061 is a deficient number, since it is larger than the sum of its proper divisors (4317711).

56130061 is a wasteful number, since it uses less digits than its factorization.

56130061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4317710.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 56130061 is about 7491.9997997864. Note that the first 3 decimals coincide. The cubic root of 56130061 is about 382.8821953382.

The spelling of 56130061 in words is "fifty-six million, one hundred thirty thousand, sixty-one".