53073709 has 8 divisors (see below), whose sum is σ = 57259832. Its totient is φ = 48902400.

The previous prime is 53073703. The next prime is 53073751. The reversal of 53073709 is 90737035.

It can be written as a sum of positive squares in 4 ways, for example, as 1276900 + 51796809 = 1130^2 + 7197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53073709 - 2¹¹ = 53071661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53073703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4417 + ... + 11209.

It is an arithmetic number, because the mean of its divisors is an integer number (7157479).

Almost surely, 2^53073709 is an apocalyptic number.

It is an amenable number.

53073709 is a deficient number, since it is larger than the sum of its proper divisors (4186123).

53073709 is a wasteful number, since it uses less digits than its factorization.

53073709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407.

The product of its (nonzero) digits is 19845, while the sum is 34.

The square root of 53073709 is about 7285.1704853078. The cubic root of 53073709 is about 375.8026281352.

The spelling of 53073709 in words is "fifty-three million, seventy-three thousand, seven hundred nine".