52181189 has 2 divisors, whose sum is σ = 52181190. Its totient is φ = 52181188.

The previous prime is 52181167. The next prime is 52181267. The reversal of 52181189 is 98118125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52085089 + 96100 = 7217^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 52181189 - 2¹⁶ = 52115653 is a prime.

It is a super-3 number, since 3×52181189³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52181119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26090594 + 26090595.

It is an arithmetic number, because the mean of its divisors is an integer number (26090595).

Almost surely, 2^52181189 is an apocalyptic number.

It is an amenable number.

52181189 is a deficient number, since it is larger than the sum of its proper divisors (1).

52181189 is an equidigital number, since it uses as much as digits as its factorization.

52181189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 35.

The square root of 52181189 is about 7223.6548228719. The cubic root of 52181189 is about 373.6841323432.

The spelling of 52181189 in words is "fifty-two million, one hundred eighty-one thousand, one hundred eighty-nine".