53450239 has 2 divisors, whose sum is σ = 53450240. Its totient is φ = 53450238.

The previous prime is 53450209. The next prime is 53450251. The reversal of 53450239 is 93205435.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53450239 - 2⁵ = 53450207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53450239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53450209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26725119 + 26725120.

It is an arithmetic number, because the mean of its divisors is an integer number (26725120).

Almost surely, 2^53450239 is an apocalyptic number.

53450239 is a deficient number, since it is larger than the sum of its proper divisors (1).

53450239 is an equidigital number, since it uses as much as digits as its factorization.

53450239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 53450239 is about 7310.9670358989. The cubic root of 53450239 is about 376.6892419532.

The spelling of 53450239 in words is "fifty-three million, four hundred fifty thousand, two hundred thirty-nine".