53303717 has 4 divisors (see below), whose sum is σ = 54744396. Its totient is φ = 51863040.

The previous prime is 53303713. The next prime is 53303741. The reversal of 53303717 is 71730335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71730335 = 5 ⋅14346067.

It can be written as a sum of positive squares in 2 ways, for example, as 23174596 + 30129121 = 4814^2 + 5489^2 .

It is a cyclic number.

It is not a de Polignac number, because 53303717 - 2² = 53303713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53303717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53303713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720284 + ... + 720357.

It is an arithmetic number, because the mean of its divisors is an integer number (13686099).

Almost surely, 2^53303717 is an apocalyptic number.

It is an amenable number.

53303717 is a deficient number, since it is larger than the sum of its proper divisors (1440679).

53303717 is a wasteful number, since it uses less digits than its factorization.

53303717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440678.

The product of its (nonzero) digits is 6615, while the sum is 29.

The square root of 53303717 is about 7300.9394600969. The cubic root of 53303717 is about 376.3447235597.

The spelling of 53303717 in words is "fifty-three million, three hundred three thousand, seven hundred seventeen".