52214989 has 2 divisors, whose sum is σ = 52214990. Its totient is φ = 52214988.

The previous prime is 52214969. The next prime is 52214999. The reversal of 52214989 is 98941225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27910089 + 24304900 = 5283^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 52214989 - 2⁵ = 52214957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52214959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26107494 + 26107495.

It is an arithmetic number, because the mean of its divisors is an integer number (26107495).

Almost surely, 2^52214989 is an apocalyptic number.

It is an amenable number.

52214989 is a deficient number, since it is larger than the sum of its proper divisors (1).

52214989 is an equidigital number, since it uses as much as digits as its factorization.

52214989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 52214989 is about 7225.9939800695. The cubic root of 52214989 is about 373.7647986892.

The spelling of 52214989 in words is "fifty-two million, two hundred fourteen thousand, nine hundred eighty-nine".