252505061 has 2 divisors, whose sum is σ = 252505062. Its totient is φ = 252505060.

The previous prime is 252505049. The next prime is 252505081. The reversal of 252505061 is 160505252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239320900 + 13184161 = 15470^2 + 3631^2 .

It is a cyclic number.

It is not a de Polignac number, because 252505061 - 2⁶ = 252504997 is a prime.

It is a super-2 number, since 2×252505061² = 127517611661227442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252505061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252505031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126252530 + 126252531.

It is an arithmetic number, because the mean of its divisors is an integer number (126252531).

Almost surely, 2^252505061 is an apocalyptic number.

It is an amenable number.

252505061 is a deficient number, since it is larger than the sum of its proper divisors (1).

252505061 is an equidigital number, since it uses as much as digits as its factorization.

252505061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 252505061 is about 15890.4078298828. The cubic root of 252505061 is about 632.0576552713.

The spelling of 252505061 in words is "two hundred fifty-two million, five hundred five thousand, sixty-one".