53165197 has 4 divisors (see below), whose sum is σ = 53662176. Its totient is φ = 52668220.

The previous prime is 53165191. The next prime is 53165209. The reversal of 53165197 is 79156135.

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 a de Polignac number, because none of the positive numbers 2^k-53165197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53165191) 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, 248329 + ... + 248542.

It is an arithmetic number, because the mean of its divisors is an integer number (13415544).

Almost surely, 2^53165197 is an apocalyptic number.

It is an amenable number.

53165197 is a deficient number, since it is larger than the sum of its proper divisors (496979).

53165197 is a wasteful number, since it uses less digits than its factorization.

53165197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496978.

The product of its digits is 28350, while the sum is 37.

The square root of 53165197 is about 7291.4468385911. The cubic root of 53165197 is about 376.0184392836.

The spelling of 53165197 in words is "fifty-three million, one hundred sixty-five thousand, one hundred ninety-seven".