252533081 has 2 divisors, whose sum is σ = 252533082. Its totient is φ = 252533080.

The previous prime is 252533051. The next prime is 252533093. The reversal of 252533081 is 180335252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199374400 + 53158681 = 14120^2 + 7291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252533081 is a prime.

It is a super-2 number, since 2×252533081² = 127545913998705122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252533041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126266540 + 126266541.

It is an arithmetic number, because the mean of its divisors is an integer number (126266541).

Almost surely, 2^252533081 is an apocalyptic number.

It is an amenable number.

252533081 is a deficient number, since it is larger than the sum of its proper divisors (1).

252533081 is an equidigital number, since it uses as much as digits as its factorization.

252533081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 252533081 is about 15891.2894693917. The cubic root of 252533081 is about 632.0810338132.

The spelling of 252533081 in words is "two hundred fifty-two million, five hundred thirty-three thousand, eighty-one".