53245165 has 4 divisors (see below), whose sum is σ = 63894204. Its totient is φ = 42596128.

The previous prime is 53245141. The next prime is 53245169. The reversal of 53245165 is 56154235.

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 8649481 + 44595684 = 2941^2 + 6678^2 .

It is a cyclic number.

It is not a de Polignac number, because 53245165 - 2¹¹ = 53243117 is a prime.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53245169) 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, 5324512 + ... + 5324521.

It is an arithmetic number, because the mean of its divisors is an integer number (15973551).

Almost surely, 2^53245165 is an apocalyptic number.

It is an amenable number.

53245165 is a deficient number, since it is larger than the sum of its proper divisors (10649039).

53245165 is a wasteful number, since it uses less digits than its factorization.

53245165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10649038.

The product of its digits is 18000, while the sum is 31.

The square root of 53245165 is about 7296.9284634016. The cubic root of 53245165 is about 376.2068732002.

The spelling of 53245165 in words is "fifty-three million, two hundred forty-five thousand, one hundred sixty-five".