52189069 has 2 divisors, whose sum is σ = 52189070. Its totient is φ = 52189068.

The previous prime is 52189051. The next prime is 52189097. The reversal of 52189069 is 96098125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39501225 + 12687844 = 6285^2 + 3562^2 .

It is a cyclic number.

It is not a de Polignac number, because 52189069 - 2⁹ = 52188557 is a prime.

It is a super-2 number, since 2×52189069² = 5447397846173522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52189769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26094534 + 26094535.

It is an arithmetic number, because the mean of its divisors is an integer number (26094535).

Almost surely, 2^52189069 is an apocalyptic number.

It is an amenable number.

52189069 is a deficient number, since it is larger than the sum of its proper divisors (1).

52189069 is an equidigital number, since it uses as much as digits as its factorization.

52189069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 52189069 is about 7224.2002325517. The cubic root of 52189069 is about 373.7029416932.

The spelling of 52189069 in words is "fifty-two million, one hundred eighty-nine thousand, sixty-nine".