253253081 has 2 divisors, whose sum is σ = 253253082. Its totient is φ = 253253080.

The previous prime is 253253053. The next prime is 253253087. The reversal of 253253081 is 180352352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251539600 + 1713481 = 15860^2 + 1309^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253253081 is a prime.

It is a super-2 number, since 2×253253081² = 128274246071985122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (253253087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126626540 + 126626541.

It is an arithmetic number, because the mean of its divisors is an integer number (126626541).

Almost surely, 2^253253081 is an apocalyptic number.

It is an amenable number.

253253081 is a deficient number, since it is larger than the sum of its proper divisors (1).

253253081 is an equidigital number, since it uses as much as digits as its factorization.

253253081 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 253253081 is about 15913.9272651348. The cubic root of 253253081 is about 632.6811750096.

The spelling of 253253081 in words is "two hundred fifty-three million, two hundred fifty-three thousand, eighty-one".