53476309 has 8 divisors (see below), whose sum is σ = 53960760. Its totient is φ = 52994496.

The previous prime is 53476307. The next prime is 53476337. The reversal of 53476309 is 90367435.

It can be written as a sum of positive squares in 4 ways, for example, as 33895684 + 19580625 = 5822^2 + 4425^2 .

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 53476309 - 2¹ = 53476307 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 (53476307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66699 + ... + 67495.

It is an arithmetic number, because the mean of its divisors is an integer number (6745095).

Almost surely, 2^53476309 is an apocalyptic number.

It is an amenable number.

53476309 is a deficient number, since it is larger than the sum of its proper divisors (484451).

53476309 is a wasteful number, since it uses less digits than its factorization.

53476309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 53476309 is about 7312.7497564186. The cubic root of 53476309 is about 376.7504745598.

The spelling of 53476309 in words is "fifty-three million, four hundred seventy-six thousand, three hundred nine".