52889987 has 2 divisors, whose sum is σ = 52889988. Its totient is φ = 52889986.

The previous prime is 52889971. The next prime is 52890011. The reversal of 52889987 is 78998825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52889987 - 2⁴ = 52889971 is a prime.

It is not a weakly prime, because it can be changed into another prime (52889087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26444993 + 26444994.

It is an arithmetic number, because the mean of its divisors is an integer number (26444994).

Almost surely, 2^52889987 is an apocalyptic number.

52889987 is a deficient number, since it is larger than the sum of its proper divisors (1).

52889987 is an equidigital number, since it uses as much as digits as its factorization.

52889987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 56.

The square root of 52889987 is about 7272.5502404590. The cubic root of 52889987 is about 375.3684958510.

The spelling of 52889987 in words is "fifty-two million, eight hundred eighty-nine thousand, nine hundred eighty-seven".