52786889 has 2 divisors, whose sum is σ = 52786890. Its totient is φ = 52786888.

The previous prime is 52786859. The next prime is 52786891. The reversal of 52786889 is 98868725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39790864 + 12996025 = 6308^2 + 3605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52786889 is a prime.

It is a Sophie Germain prime.

Together with 52786891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 52786889.

It is not a weakly prime, because it can be changed into another prime (52786829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26393444 + 26393445.

It is an arithmetic number, because the mean of its divisors is an integer number (26393445).

Almost surely, 2^52786889 is an apocalyptic number.

It is an amenable number.

52786889 is a deficient number, since it is larger than the sum of its proper divisors (1).

52786889 is an equidigital number, since it uses as much as digits as its factorization.

52786889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 53.

The square root of 52786889 is about 7265.4586228262. The cubic root of 52786889 is about 375.1244363333.

It can be divided in two parts, 5278 and 6889, that added together give a cube (12167 = 23³).

The spelling of 52786889 in words is "fifty-two million, seven hundred eighty-six thousand, eight hundred eighty-nine".