53973161 has 4 divisors (see below), whose sum is σ = 58879824. Its totient is φ = 49066500.

The previous prime is 53973151. The next prime is 53973169. The reversal of 53973161 is 16137935.

53973161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 53973161 - 2¹⁸ = 53711017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53973169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453315 + ... + 2453336.

It is an arithmetic number, because the mean of its divisors is an integer number (14719956).

Almost surely, 2^53973161 is an apocalyptic number.

It is an amenable number.

53973161 is a deficient number, since it is larger than the sum of its proper divisors (4906663).

53973161 is a wasteful number, since it uses less digits than its factorization.

53973161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906662.

The product of its digits is 17010, while the sum is 35.

The square root of 53973161 is about 7346.6428387393. The cubic root of 53973161 is about 377.9136841817.

It can be divided in two parts, 5397 and 3161, that added together give a palindrome (8558).

The spelling of 53973161 in words is "fifty-three million, nine hundred seventy-three thousand, one hundred sixty-one".