52678969 has 16 divisors (see below), whose sum is σ = 61747200. Its totient is φ = 44923200.

The previous prime is 52678961. The next prime is 52678991. The reversal of 52678969 is 96987625.

It is a happy number.

52678969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52678969 - 2³ = 52678961 is a prime.

It is a super-2 number, since 2×52678969² = 5550147549805922, 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 (52678961) 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 15 ways as a sum of consecutive naturals, for example, 131169 + ... + 131569.

It is an arithmetic number, because the mean of its divisors is an integer number (3859200).

Almost surely, 2^52678969 is an apocalyptic number.

It is an amenable number.

52678969 is a deficient number, since it is larger than the sum of its proper divisors (9068231).

52678969 is an equidigital number, since it uses as much as digits as its factorization.

52678969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 791 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 52678969 is about 7258.0279001944. The cubic root of 52678969 is about 374.8686212370.

The spelling of 52678969 in words is "fifty-two million, six hundred seventy-eight thousand, nine hundred sixty-nine".