56505329 has 2 divisors, whose sum is σ = 56505330. Its totient is φ = 56505328.

The previous prime is 56505283. The next prime is 56505347. The reversal of 56505329 is 92350565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53993104 + 2512225 = 7348^2 + 1585^2 .

It is a cyclic number.

It is not a de Polignac number, because 56505329 - 2⁸ = 56505073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56505349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28252664 + 28252665.

It is an arithmetic number, because the mean of its divisors is an integer number (28252665).

Almost surely, 2^56505329 is an apocalyptic number.

It is an amenable number.

56505329 is a deficient number, since it is larger than the sum of its proper divisors (1).

56505329 is an equidigital number, since it uses as much as digits as its factorization.

56505329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 56505329 is about 7517.0026606354. The cubic root of 56505329 is about 383.7335775845.

The spelling of 56505329 in words is "fifty-six million, five hundred five thousand, three hundred twenty-nine".