53716569 has 16 divisors (see below), whose sum is σ = 75019392. Its totient is φ = 34124288.

The previous prime is 53716567. The next prime is 53716571. The reversal of 53716569 is 96561735.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53716567) and next prime (53716571).

It is a cyclic number.

It is not a de Polignac number, because 53716569 - 2¹ = 53716567 is a prime.

It is a super-2 number, since 2×53716569² = 5770939570263522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 53716569.

It is not an unprimeable number, because it can be changed into a prime (53716567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18889 + ... + 21545.

It is an arithmetic number, because the mean of its divisors is an integer number (4688712).

Almost surely, 2^53716569 is an apocalyptic number.

It is an amenable number.

53716569 is a deficient number, since it is larger than the sum of its proper divisors (21302823).

53716569 is a wasteful number, since it uses less digits than its factorization.

53716569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976.

The product of its digits is 170100, while the sum is 42.

The square root of 53716569 is about 7329.1588194008. The cubic root of 53716569 is about 377.3138570325.

It can be divided in two parts, 53716 and 569, that added together give a triangular number (54285 = T₃₂₉).

The spelling of 53716569 in words is "fifty-three million, seven hundred sixteen thousand, five hundred sixty-nine".