53638269 has 4 divisors (see below), whose sum is σ = 71517696. Its totient is φ = 35758844.

The previous prime is 53638267. The next prime is 53638289. The reversal of 53638269 is 96283635.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53638269 - 2¹ = 53638267 is a prime.

It is a super-2 number, since 2×53638269² = 5754127802632722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53638269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53638267) 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, 8939709 + ... + 8939714.

It is an arithmetic number, because the mean of its divisors is an integer number (17879424).

Almost surely, 2^53638269 is an apocalyptic number.

It is an amenable number.

53638269 is a deficient number, since it is larger than the sum of its proper divisors (17879427).

53638269 is a wasteful number, since it uses less digits than its factorization.

53638269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17879426.

The product of its digits is 233280, while the sum is 42.

The square root of 53638269 is about 7323.8151942823. The cubic root of 53638269 is about 377.1304372673.

The spelling of 53638269 in words is "fifty-three million, six hundred thirty-eight thousand, two hundred sixty-nine".