53727217 has 4 divisors (see below), whose sum is σ = 53742960. Its totient is φ = 53711476.

The previous prime is 53727203. The next prime is 53727239. The reversal of 53727217 is 71272735.

It is a happy number.

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 53727217 - 2¹¹ = 53725169 is a prime.

It is a super-2 number, since 2×53727217² = 5773227693130178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53727257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367 + ... + 10372.

It is an arithmetic number, because the mean of its divisors is an integer number (13435740).

Almost surely, 2^53727217 is an apocalyptic number.

It is an amenable number.

53727217 is a deficient number, since it is larger than the sum of its proper divisors (15743).

53727217 is a wasteful number, since it uses less digits than its factorization.

53727217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15742.

The product of its digits is 20580, while the sum is 34.

The square root of 53727217 is about 7329.8851969182. The cubic root of 53727217 is about 377.3387864760.

It can be divided in two parts, 537272 and 17, that added together give a square (537289 = 733²).

The spelling of 53727217 in words is "fifty-three million, seven hundred twenty-seven thousand, two hundred seventeen".