53083709 has 10 divisors (see below), whose sum is σ = 61930110. Its totient is φ = 45498264.

The previous prime is 53083699. The next prime is 53083711. The reversal of 53083709 is 90738035.

It can be written as a sum of positive squares in only one way, i.e., 35736484 + 17347225 = 5978^2 + 4165^2 .

It is not a de Polignac number, because 53083709 - 2⁸ = 53083453 is a prime.

It is a super-2 number, since 2×53083709² = 5635760322393362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53083769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8654 + ... + 13455.

It is an arithmetic number, because the mean of its divisors is an integer number (6193011).

Almost surely, 2^53083709 is an apocalyptic number.

It is an amenable number.

53083709 is a deficient number, since it is larger than the sum of its proper divisors (8846401).

53083709 is an frugal number, since it uses more digits than its factorization.

53083709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22137 (or 22116 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 53083709 is about 7285.8567787186. The cubic root of 53083709 is about 375.8262292134.

The spelling of 53083709 in words is "fifty-three million, eighty-three thousand, seven hundred nine".