53303249 has 2 divisors, whose sum is σ = 53303250. Its totient is φ = 53303248.

The previous prime is 53303209. The next prime is 53303251. The reversal of 53303249 is 94230335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43890625 + 9412624 = 6625^2 + 3068^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53303249 is a prime.

Together with 53303251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53303209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26651624 + 26651625.

It is an arithmetic number, because the mean of its divisors is an integer number (26651625).

Almost surely, 2^53303249 is an apocalyptic number.

It is an amenable number.

53303249 is a deficient number, since it is larger than the sum of its proper divisors (1).

53303249 is an equidigital number, since it uses as much as digits as its factorization.

53303249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 53303249 is about 7300.9074093567. The cubic root of 53303249 is about 376.3436221365.

The spelling of 53303249 in words is "fifty-three million, three hundred three thousand, two hundred forty-nine".