253025281 has 2 divisors, whose sum is σ = 253025282. Its totient is φ = 253025280.

The previous prime is 253025273. The next prime is 253025293. The reversal of 253025281 is 182520352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245235600 + 7789681 = 15660^2 + 2791^2 .

It is a cyclic number.

It is not a de Polignac number, because 253025281 - 2³ = 253025273 is a prime.

It is a super-2 number, since 2×253025281² = 128043585650257922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253025221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126512640 + 126512641.

It is an arithmetic number, because the mean of its divisors is an integer number (126512641).

Almost surely, 2^253025281 is an apocalyptic number.

It is an amenable number.

253025281 is a deficient number, since it is larger than the sum of its proper divisors (1).

253025281 is an equidigital number, since it uses as much as digits as its factorization.

253025281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 253025281 is about 15906.7684021614. The cubic root of 253025281 is about 632.4914201526.

The spelling of 253025281 in words is "two hundred fifty-three million, twenty-five thousand, two hundred eighty-one".