53040309 has 8 divisors (see below), whose sum is σ = 80823360. Its totient is φ = 30308736.

The previous prime is 53040307. The next prime is 53040311. The reversal of 53040309 is 90304035.

53040309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (53040307) and next prime (53040311).

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

It is not a de Polignac number, because 53040309 - 2¹ = 53040307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53040307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262844 + ... + 1262885.

It is an arithmetic number, because the mean of its divisors is an integer number (10102920).

Almost surely, 2^53040309 is an apocalyptic number.

It is an amenable number.

53040309 is a deficient number, since it is larger than the sum of its proper divisors (27783051).

53040309 is a wasteful number, since it uses less digits than its factorization.

53040309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525739.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 53040309 is about 7282.8777965856. The cubic root of 53040309 is about 375.7237790405.

The spelling of 53040309 in words is "fifty-three million, forty thousand, three hundred nine".