52247189 has 2 divisors, whose sum is σ = 52247190. Its totient is φ = 52247188.

The previous prime is 52247179. The next prime is 52247213. The reversal of 52247189 is 98174225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37920964 + 14326225 = 6158^2 + 3785^2 .

It is a cyclic number.

It is not a de Polignac number, because 52247189 - 2²⁰ = 51198613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52247159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26123594 + 26123595.

It is an arithmetic number, because the mean of its divisors is an integer number (26123595).

Almost surely, 2^52247189 is an apocalyptic number.

It is an amenable number.

52247189 is a deficient number, since it is larger than the sum of its proper divisors (1).

52247189 is an equidigital number, since it uses as much as digits as its factorization.

52247189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 38.

The square root of 52247189 is about 7228.2217038494. The cubic root of 52247189 is about 373.8416141377.

The spelling of 52247189 in words is "fifty-two million, two hundred forty-seven thousand, one hundred eighty-nine".