53312165 has 4 divisors (see below), whose sum is σ = 63974604. Its totient is φ = 42649728.

The previous prime is 53312113. The next prime is 53312173. The reversal of 53312165 is 56121335.

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 12773476 + 40538689 = 3574^2 + 6367^2 .

It is a cyclic number.

It is not a de Polignac number, because 53312165 - 2¹² = 53308069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5331212 + ... + 5331221.

It is an arithmetic number, because the mean of its divisors is an integer number (15993651).

Almost surely, 2^53312165 is an apocalyptic number.

It is an amenable number.

53312165 is a deficient number, since it is larger than the sum of its proper divisors (10662439).

53312165 is a wasteful number, since it uses less digits than its factorization.

53312165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10662438.

The product of its digits is 2700, while the sum is 26.

The square root of 53312165 is about 7301.5179928560. The cubic root of 53312165 is about 376.3646045514.

The spelling of 53312165 in words is "fifty-three million, three hundred twelve thousand, one hundred sixty-five".