53118265 has 4 divisors (see below), whose sum is σ = 63741924. Its totient is φ = 42494608.

The previous prime is 53118259. The next prime is 53118269. The reversal of 53118265 is 56281135.

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 17214201 + 35904064 = 4149^2 + 5992^2 .

It is a cyclic number.

It is not a de Polignac number, because 53118265 - 2¹⁵ = 53085497 is a prime.

It is a super-2 number, since 2×53118265² = 5643100153220450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53118269) 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, 5311822 + ... + 5311831.

It is an arithmetic number, because the mean of its divisors is an integer number (15935481).

Almost surely, 2^53118265 is an apocalyptic number.

It is an amenable number.

53118265 is a deficient number, since it is larger than the sum of its proper divisors (10623659).

53118265 is a wasteful number, since it uses less digits than its factorization.

53118265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10623658.

The product of its digits is 7200, while the sum is 31.

The square root of 53118265 is about 7288.2278367241. The cubic root of 53118265 is about 375.9077622887.

The spelling of 53118265 in words is "fifty-three million, one hundred eighteen thousand, two hundred sixty-five".