53803643 has 2 divisors, whose sum is σ = 53803644. Its totient is φ = 53803642.

The previous prime is 53803619. The next prime is 53803663. The reversal of 53803643 is 34630835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53803643 - 2¹⁴ = 53787259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (53803663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26901821 + 26901822.

It is an arithmetic number, because the mean of its divisors is an integer number (26901822).

Almost surely, 2^53803643 is an apocalyptic number.

53803643 is a deficient number, since it is larger than the sum of its proper divisors (1).

53803643 is an equidigital number, since it uses as much as digits as its factorization.

53803643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 53803643 is about 7335.0966592132. The cubic root of 53803643 is about 377.5176209192.

The spelling of 53803643 in words is "fifty-three million, eight hundred three thousand, six hundred forty-three".