52642789 has 4 divisors (see below), whose sum is σ = 52657900. Its totient is φ = 52627680.

The previous prime is 52642781. The next prime is 52642813. The reversal of 52642789 is 98724625.

52642789 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1520289 + 51122500 = 1233^2 + 7150^2 .

It is a cyclic number.

It is not a de Polignac number, because 52642789 - 2³ = 52642781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52642781) 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, 619 + ... + 10279.

It is an arithmetic number, because the mean of its divisors is an integer number (13164475).

Almost surely, 2^52642789 is an apocalyptic number.

It is an amenable number.

52642789 is a deficient number, since it is larger than the sum of its proper divisors (15111).

52642789 is an equidigital number, since it uses as much as digits as its factorization.

52642789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15110.

The product of its digits is 241920, while the sum is 43.

The square root of 52642789 is about 7255.5350595252. The cubic root of 52642789 is about 374.7827814598.

The spelling of 52642789 in words is "fifty-two million, six hundred forty-two thousand, seven hundred eighty-nine".