53820049 has 2 divisors, whose sum is σ = 53820050. Its totient is φ = 53820048.

The previous prime is 53820043. The next prime is 53820073. The reversal of 53820049 is 94002835.

53820049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 5267025 = 6968^2 + 2295^2 .

It is a cyclic number.

It is not a de Polignac number, because 53820049 - 2⁵ = 53820017 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53820049.

It is not a weakly prime, because it can be changed into another prime (53820043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26910024 + 26910025.

It is an arithmetic number, because the mean of its divisors is an integer number (26910025).

Almost surely, 2^53820049 is an apocalyptic number.

It is an amenable number.

53820049 is a deficient number, since it is larger than the sum of its proper divisors (1).

53820049 is an equidigital number, since it uses as much as digits as its factorization.

53820049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 53820049 is about 7336.2148959801. The cubic root of 53820049 is about 377.5559883626. Note that the first 3 decimals are identical.

The spelling of 53820049 in words is "fifty-three million, eight hundred twenty thousand, forty-nine".