56555329 has 2 divisors, whose sum is σ = 56555330. Its totient is φ = 56555328.

The previous prime is 56555309. The next prime is 56555333. The reversal of 56555329 is 92355565.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45927729 + 10627600 = 6777^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 56555329 - 2¹¹ = 56553281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56555291 and 56555300.

It is not a weakly prime, because it can be changed into another prime (56555309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277664 + 28277665.

It is an arithmetic number, because the mean of its divisors is an integer number (28277665).

Almost surely, 2^56555329 is an apocalyptic number.

It is an amenable number.

56555329 is a deficient number, since it is larger than the sum of its proper divisors (1).

56555329 is an equidigital number, since it uses as much as digits as its factorization.

56555329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 202500, while the sum is 40.

The square root of 56555329 is about 7520.3277189229. The cubic root of 56555329 is about 383.8467292863.

The spelling of 56555329 in words is "fifty-six million, five hundred fifty-five thousand, three hundred twenty-nine".