52445839 has 2 divisors, whose sum is σ = 52445840. Its totient is φ = 52445838.

The previous prime is 52445821. The next prime is 52445851. The reversal of 52445839 is 93854425.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52445839 - 2⁷ = 52445711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52445879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26222919 + 26222920.

It is an arithmetic number, because the mean of its divisors is an integer number (26222920).

Almost surely, 2^52445839 is an apocalyptic number.

52445839 is a deficient number, since it is larger than the sum of its proper divisors (1).

52445839 is an equidigital number, since it uses as much as digits as its factorization.

52445839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 52445839 is about 7241.9499445937. The cubic root of 52445839 is about 374.3148116224.

The spelling of 52445839 in words is "fifty-two million, four hundred forty-five thousand, eight hundred thirty-nine".