253767797 has 2 divisors, whose sum is σ = 253767798. Its totient is φ = 253767796.

The previous prime is 253767779. The next prime is 253767803. The reversal of 253767797 is 797767352.

Together with previous prime (253767779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253637476 + 130321 = 15926^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 253767797 - 2¹⁴ = 253751413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253367797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126883898 + 126883899.

It is an arithmetic number, because the mean of its divisors is an integer number (126883899).

Almost surely, 2^253767797 is an apocalyptic number.

It is an amenable number.

253767797 is a deficient number, since it is larger than the sum of its proper divisors (1).

253767797 is an equidigital number, since it uses as much as digits as its factorization.

253767797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3889620, while the sum is 53.

The square root of 253767797 is about 15930.0909288051. The cubic root of 253767797 is about 633.1095090585.

The spelling of 253767797 in words is "two hundred fifty-three million, seven hundred sixty-seven thousand, seven hundred ninety-seven".