52146989 has 8 divisors (see below), whose sum is σ = 52604160. Its totient is φ = 51692256.

The previous prime is 52146979. The next prime is 52147019. The reversal of 52146989 is 98964125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52146989 is a prime.

It is a super-2 number, since 2×52146989² = 5438616923532242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52146979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84209 + ... + 84825.

It is an arithmetic number, because the mean of its divisors is an integer number (6575520).

Almost surely, 2^52146989 is an apocalyptic number.

It is an amenable number.

52146989 is a deficient number, since it is larger than the sum of its proper divisors (457171).

52146989 is a wasteful number, since it uses less digits than its factorization.

52146989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its digits is 155520, while the sum is 44.

The square root of 52146989 is about 7221.2872121250. The cubic root of 52146989 is about 373.6024759032.

It can be divided in two parts, 52146 and 989, that added together give a palindrome (53135).

The spelling of 52146989 in words is "fifty-two million, one hundred forty-six thousand, nine hundred eighty-nine".