52386889 has 4 divisors (see below), whose sum is σ = 53664660. Its totient is φ = 51109120.

The previous prime is 52386863. The next prime is 52386899. The reversal of 52386889 is 98868325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8363664 + 44023225 = 2892^2 + 6635^2 .

It is a cyclic number.

It is not a de Polignac number, because 52386889 - 2¹¹ = 52384841 is a prime.

It is a super-2 number, since 2×52386889² = 5488772278196642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52386839) 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, 638824 + ... + 638905.

It is an arithmetic number, because the mean of its divisors is an integer number (13416165).

Almost surely, 2^52386889 is an apocalyptic number.

It is an amenable number.

52386889 is a deficient number, since it is larger than the sum of its proper divisors (1277771).

52386889 is a wasteful number, since it uses less digits than its factorization.

52386889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277770.

The product of its digits is 829440, while the sum is 49.

The square root of 52386889 is about 7237.8787638368. The cubic root of 52386889 is about 374.1745136744.

The spelling of 52386889 in words is "fifty-two million, three hundred eighty-six thousand, eight hundred eighty-nine".