52080729 has 16 divisors (see below), whose sum is σ = 73420800. Its totient is φ = 32746896.

The previous prime is 52080703. The next prime is 52080737. The reversal of 52080729 is 92708025.

It is not a de Polignac number, because 52080729 - 2⁸ = 52080473 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52080729.

It is not an unprimeable number, because it can be changed into a prime (52080739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11712 + ... + 15534.

It is an arithmetic number, because the mean of its divisors is an integer number (4588800).

Almost surely, 2^52080729 is an apocalyptic number.

It is an amenable number.

52080729 is a deficient number, since it is larger than the sum of its proper divisors (21340071).

52080729 is a wasteful number, since it uses less digits than its factorization.

52080729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 52080729 is about 7216.6979291086. The cubic root of 52080729 is about 373.4441708711. Note that the first 3 decimals are identical.

The spelling of 52080729 in words is "fifty-two million, eighty thousand, seven hundred twenty-nine".