52297729 has 12 divisors (see below), whose sum is σ = 60609168. Its totient is φ = 44744000.

The previous prime is 52297717. The next prime is 52297733. The reversal of 52297729 is 92779225.

It is not a de Polignac number, because 52297729 - 2¹⁷ = 52166657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52297769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5047 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (5050764).

It is a Proth number, since it is equal to 399 ⋅ 2¹⁷ + 1 and 399 < 2¹⁷.

Almost surely, 2^52297729 is an apocalyptic number.

It is an amenable number.

52297729 is a deficient number, since it is larger than the sum of its proper divisors (8311439).

52297729 is a wasteful number, since it uses less digits than its factorization.

52297729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16496 (or 16479 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 52297729 is about 7231.7168777545. The cubic root of 52297729 is about 373.9621173751.

The spelling of 52297729 in words is "fifty-two million, two hundred ninety-seven thousand, seven hundred twenty-nine".