52003181 has 2 divisors, whose sum is σ = 52003182. Its totient is φ = 52003180.

The previous prime is 52003163. The next prime is 52003219. The reversal of 52003181 is 18130025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 12187081 = 6310^2 + 3491^2 .

It is a cyclic number.

It is not a de Polignac number, because 52003181 - 2⁶ = 52003117 is a prime.

It is a super-2 number, since 2×52003181² = 5408661668237522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52003121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26001590 + 26001591.

It is an arithmetic number, because the mean of its divisors is an integer number (26001591).

Almost surely, 2^52003181 is an apocalyptic number.

It is an amenable number.

52003181 is a deficient number, since it is larger than the sum of its proper divisors (1).

52003181 is an equidigital number, since it uses as much as digits as its factorization.

52003181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 52003181 is about 7211.3231102205. The cubic root of 52003181 is about 373.2587264996.

The spelling of 52003181 in words is "fifty-two million, three thousand, one hundred eighty-one".