52989161 has 4 divisors (see below), whose sum is σ = 53780112. Its totient is φ = 52198212.

The previous prime is 52989149. The next prime is 52989169. The reversal of 52989161 is 16198925.

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 52989161 - 2²² = 48794857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52989169) 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, 395375 + ... + 395508.

It is an arithmetic number, because the mean of its divisors is an integer number (13445028).

Almost surely, 2^52989161 is an apocalyptic number.

It is an amenable number.

52989161 is a deficient number, since it is larger than the sum of its proper divisors (790951).

52989161 is an equidigital number, since it uses as much as digits as its factorization.

52989161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790950.

The product of its digits is 38880, while the sum is 41.

The square root of 52989161 is about 7279.3654256398. The cubic root of 52989161 is about 375.6029671472.

The spelling of 52989161 in words is "fifty-two million, nine hundred eighty-nine thousand, one hundred sixty-one".