56306641 has 2 divisors, whose sum is σ = 56306642. Its totient is φ = 56306640.

The previous prime is 56306623. The next prime is 56306647. The reversal of 56306641 is 14660365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42771600 + 13535041 = 6540^2 + 3679^2 .

It is a cyclic number.

It is not a de Polignac number, because 56306641 - 2¹⁷ = 56175569 is a prime.

It is not a weakly prime, because it can be changed into another prime (56306647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28153320 + 28153321.

It is an arithmetic number, because the mean of its divisors is an integer number (28153321).

Almost surely, 2^56306641 is an apocalyptic number.

It is an amenable number.

56306641 is a deficient number, since it is larger than the sum of its proper divisors (1).

56306641 is an equidigital number, since it uses as much as digits as its factorization.

56306641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 56306641 is about 7503.7751165663. The cubic root of 56306641 is about 383.2832790767.

The spelling of 56306641 in words is "fifty-six million, three hundred six thousand, six hundred forty-one".