56105039 has 2 divisors, whose sum is σ = 56105040. Its totient is φ = 56105038.

The previous prime is 56105017. The next prime is 56105051. The reversal of 56105039 is 93050165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56105039 - 2¹² = 56100943 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 (56105059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28052519 + 28052520.

It is an arithmetic number, because the mean of its divisors is an integer number (28052520).

Almost surely, 2^56105039 is an apocalyptic number.

56105039 is a deficient number, since it is larger than the sum of its proper divisors (1).

56105039 is an equidigital number, since it uses as much as digits as its factorization.

56105039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 56105039 is about 7490.3296990186. The cubic root of 56105039 is about 382.8252923639.

The spelling of 56105039 in words is "fifty-six million, one hundred five thousand, thirty-nine".