52443709 has 2 divisors, whose sum is σ = 52443710. Its totient is φ = 52443708.

The previous prime is 52443707. The next prime is 52443719. The reversal of 52443709 is 90734425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51768025 + 675684 = 7195^2 + 822^2 .

It is a cyclic number.

It is not a de Polignac number, because 52443709 - 2¹ = 52443707 is a prime.

It is a super-2 number, since 2×52443709² = 5500685227353362, which contains 22 as substring.

Together with 52443707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52443701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26221854 + 26221855.

It is an arithmetic number, because the mean of its divisors is an integer number (26221855).

Almost surely, 2^52443709 is an apocalyptic number.

It is an amenable number.

52443709 is a deficient number, since it is larger than the sum of its proper divisors (1).

52443709 is an equidigital number, since it uses as much as digits as its factorization.

52443709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 52443709 is about 7241.8028832605. The cubic root of 52443709 is about 374.3097441638.

The spelling of 52443709 in words is "fifty-two million, four hundred forty-three thousand, seven hundred nine".