53444239 has 2 divisors, whose sum is σ = 53444240. Its totient is φ = 53444238.

The previous prime is 53444221. The next prime is 53444257. The reversal of 53444239 is 93244435.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (53444221) and next prime (53444257).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53444239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53444219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26722119 + 26722120.

It is an arithmetic number, because the mean of its divisors is an integer number (26722120).

Almost surely, 2^53444239 is an apocalyptic number.

53444239 is a deficient number, since it is larger than the sum of its proper divisors (1).

53444239 is an equidigital number, since it uses as much as digits as its factorization.

53444239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 34.

The square root of 53444239 is about 7310.5566819497. The cubic root of 53444239 is about 376.6751464751.

The spelling of 53444239 in words is "fifty-three million, four hundred forty-four thousand, two hundred thirty-nine".