53820859 has 2 divisors, whose sum is σ = 53820860. Its totient is φ = 53820858.

The previous prime is 53820857. The next prime is 53820937. The reversal of 53820859 is 95802835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53820859 - 2¹ = 53820857 is a prime.

Together with 53820857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53820857) 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, 26910429 + 26910430.

It is an arithmetic number, because the mean of its divisors is an integer number (26910430).

Almost surely, 2^53820859 is an apocalyptic number.

53820859 is a deficient number, since it is larger than the sum of its proper divisors (1).

53820859 is an equidigital number, since it uses as much as digits as its factorization.

53820859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 53820859 is about 7336.2701013526. The cubic root of 53820859 is about 377.5578824449.

The spelling of 53820859 in words is "fifty-three million, eight hundred twenty thousand, eight hundred fifty-nine".