56107109 has 2 divisors, whose sum is σ = 56107110. Its totient is φ = 56107108.

The previous prime is 56107081. The next prime is 56107151. The reversal of 56107109 is 90170165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33988900 + 22118209 = 5830^2 + 4703^2 .

It is a cyclic number.

It is not a de Polignac number, because 56107109 - 2²⁴ = 39329893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56107309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28053554 + 28053555.

It is an arithmetic number, because the mean of its divisors is an integer number (28053555).

Almost surely, 2^56107109 is an apocalyptic number.

It is an amenable number.

56107109 is a deficient number, since it is larger than the sum of its proper divisors (1).

56107109 is an equidigital number, since it uses as much as digits as its factorization.

56107109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 56107109 is about 7490.4678759074. The cubic root of 56107109 is about 382.8300004294.

The spelling of 56107109 in words is "fifty-six million, one hundred seven thousand, one hundred nine".