52220249 has 2 divisors, whose sum is σ = 52220250. Its totient is φ = 52220248.

The previous prime is 52220219. The next prime is 52220257. The reversal of 52220249 is 94202225.

52220249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 3667225 = 6968^2 + 1915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52220249 is a prime.

It is not a weakly prime, because it can be changed into another prime (52220219) 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, 26110124 + 26110125.

It is an arithmetic number, because the mean of its divisors is an integer number (26110125).

Almost surely, 2^52220249 is an apocalyptic number.

It is an amenable number.

52220249 is a deficient number, since it is larger than the sum of its proper divisors (1).

52220249 is an equidigital number, since it uses as much as digits as its factorization.

52220249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 52220249 is about 7226.3579346722. The cubic root of 52220249 is about 373.7773489605. Note that the first 3 decimals are identical.

The spelling of 52220249 in words is "fifty-two million, two hundred twenty thousand, two hundred forty-nine".