52787369 has 4 divisors (see below), whose sum is σ = 55082496. Its totient is φ = 50492244.

The previous prime is 52787341. The next prime is 52787381. The reversal of 52787369 is 96378725.

52787369 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 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 52787369 - 2⁸ = 52787113 is a prime.

It is a super-2 number, since 2×52787369² = 5573012651884322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52787309) 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, 1147529 + ... + 1147574.

It is an arithmetic number, because the mean of its divisors is an integer number (13770624).

Almost surely, 2^52787369 is an apocalyptic number.

It is an amenable number.

52787369 is a deficient number, since it is larger than the sum of its proper divisors (2295127).

52787369 is a wasteful number, since it uses less digits than its factorization.

52787369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295126.

The product of its digits is 635040, while the sum is 47.

The square root of 52787369 is about 7265.4916557656. The cubic root of 52787369 is about 375.1255733529.

The spelling of 52787369 in words is "fifty-two million, seven hundred eighty-seven thousand, three hundred sixty-nine".