56005357 has 2 divisors, whose sum is σ = 56005358. Its totient is φ = 56005356.

The previous prime is 56005343. The next prime is 56005363. The reversal of 56005357 is 75350065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43480836 + 12524521 = 6594^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 56005357 - 2²³ = 47616749 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 (56005657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28002678 + 28002679.

It is an arithmetic number, because the mean of its divisors is an integer number (28002679).

Almost surely, 2^56005357 is an apocalyptic number.

It is an amenable number.

56005357 is a deficient number, since it is larger than the sum of its proper divisors (1).

56005357 is an equidigital number, since it uses as much as digits as its factorization.

56005357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 56005357 is about 7483.6726946066. The cubic root of 56005357 is about 382.5984356564.

The spelling of 56005357 in words is "fifty-six million, five thousand, three hundred fifty-seven".