253530811 has 2 divisors, whose sum is σ = 253530812. Its totient is φ = 253530810.

The previous prime is 253530799. The next prime is 253530899. The reversal of 253530811 is 118035352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253530811 - 2⁵ = 253530779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253530811.

It is not a weakly prime, because it can be changed into another prime (253533811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126765405 + 126765406.

It is an arithmetic number, because the mean of its divisors is an integer number (126765406).

Almost surely, 2^253530811 is an apocalyptic number.

253530811 is a deficient number, since it is larger than the sum of its proper divisors (1).

253530811 is an equidigital number, since it uses as much as digits as its factorization.

253530811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 253530811 is about 15922.6508785441. The cubic root of 253530811 is about 632.9123671287.

The spelling of 253530811 in words is "two hundred fifty-three million, five hundred thirty thousand, eight hundred eleven".