56840093 has 2 divisors, whose sum is σ = 56840094. Its totient is φ = 56840092.

The previous prime is 56840089. The next prime is 56840101. The reversal of 56840093 is 39004865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53553124 + 3286969 = 7318^2 + 1813^2 .

It is a cyclic number.

It is not a de Polignac number, because 56840093 - 2² = 56840089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56840033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28420046 + 28420047.

It is an arithmetic number, because the mean of its divisors is an integer number (28420047).

Almost surely, 2^56840093 is an apocalyptic number.

It is an amenable number.

56840093 is a deficient number, since it is larger than the sum of its proper divisors (1).

56840093 is an equidigital number, since it uses as much as digits as its factorization.

56840093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 56840093 is about 7539.2368977238. The cubic root of 56840093 is about 384.4898916953.

The spelling of 56840093 in words is "fifty-six million, eight hundred forty thousand, ninety-three".