53917161 has 4 divisors (see below), whose sum is σ = 71889552. Its totient is φ = 35944772.

The previous prime is 53917151. The next prime is 53917181. The reversal of 53917161 is 16171935.

It is a happy number.

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 53917161 - 2⁷ = 53917033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53917121) 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, 8986191 + ... + 8986196.

It is an arithmetic number, because the mean of its divisors is an integer number (17972388).

Almost surely, 2^53917161 is an apocalyptic number.

It is an amenable number.

53917161 is a deficient number, since it is larger than the sum of its proper divisors (17972391).

53917161 is a wasteful number, since it uses less digits than its factorization.

53917161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17972390.

The product of its digits is 5670, while the sum is 33.

The square root of 53917161 is about 7342.8305849992. The cubic root of 53917161 is about 377.7829371620.

The spelling of 53917161 in words is "fifty-three million, nine hundred seventeen thousand, one hundred sixty-one".