53490317 has 4 divisors (see below), whose sum is σ = 53680956. Its totient is φ = 53299680.

The previous prime is 53490299. The next prime is 53490319. The reversal of 53490317 is 71309435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11874916 + 41615401 = 3446^2 + 6451^2 .

It is a cyclic number.

It is not a de Polignac number, because 53490317 - 2⁶ = 53490253 is a prime.

It is a super-2 number, since 2×53490317² = 5722428025520978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53490319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94898 + ... + 95459.

It is an arithmetic number, because the mean of its divisors is an integer number (13420239).

Almost surely, 2^53490317 is an apocalyptic number.

It is an amenable number.

53490317 is a deficient number, since it is larger than the sum of its proper divisors (190639).

53490317 is a wasteful number, since it uses less digits than its factorization.

53490317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190638.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 53490317 is about 7313.7074729579. The cubic root of 53490317 is about 376.7833680037.

The spelling of 53490317 in words is "fifty-three million, four hundred ninety thousand, three hundred seventeen".