53973159 has 4 divisors (see below), whose sum is σ = 71964216. Its totient is φ = 35982104.

The previous prime is 53973151. The next prime is 53973169. The reversal of 53973159 is 95137935.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53973159 - 2³ = 53973151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53973159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53973151) 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, 8995524 + ... + 8995529.

It is an arithmetic number, because the mean of its divisors is an integer number (17991054).

Almost surely, 2^53973159 is an apocalyptic number.

53973159 is a deficient number, since it is larger than the sum of its proper divisors (17991057).

53973159 is a wasteful number, since it uses less digits than its factorization.

53973159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17991056.

The product of its digits is 127575, while the sum is 42.

The square root of 53973159 is about 7346.6427026227. The cubic root of 53973159 is about 377.9136795138.

The spelling of 53973159 in words is "fifty-three million, nine hundred seventy-three thousand, one hundred fifty-nine".