52312789 has 4 divisors (see below), whose sum is σ = 52689280. Its totient is φ = 51936300.

The previous prime is 52312769. The next prime is 52312817. The reversal of 52312789 is 98721325.

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 a de Polignac number, because none of the positive numbers 2^k-52312789 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 (52312769) 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, 188037 + ... + 188314.

It is an arithmetic number, because the mean of its divisors is an integer number (13172320).

Almost surely, 2^52312789 is an apocalyptic number.

It is an amenable number.

52312789 is a deficient number, since it is larger than the sum of its proper divisors (376491).

52312789 is a wasteful number, since it uses less digits than its factorization.

52312789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376490.

The product of its digits is 30240, while the sum is 37.

The square root of 52312789 is about 7232.7580493198. The cubic root of 52312789 is about 373.9980101317.

The spelling of 52312789 in words is "fifty-two million, three hundred twelve thousand, seven hundred eighty-nine".