253993097 has 2 divisors, whose sum is σ = 253993098. Its totient is φ = 253993096.

The previous prime is 253993093. The next prime is 253993099. The reversal of 253993097 is 790399352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253319056 + 674041 = 15916^2 + 821^2 .

It is a cyclic number.

It is not a de Polignac number, because 253993097 - 2² = 253993093 is a prime.

Together with 253993099, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253993093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126996548 + 126996549.

It is an arithmetic number, because the mean of its divisors is an integer number (126996549).

Almost surely, 2^253993097 is an apocalyptic number.

It is an amenable number.

253993097 is a deficient number, since it is larger than the sum of its proper divisors (1).

253993097 is an equidigital number, since it uses as much as digits as its factorization.

253993097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 47.

The square root of 253993097 is about 15937.1608826666. The cubic root of 253993097 is about 633.2968159616.

The spelling of 253993097 in words is "two hundred fifty-three million, nine hundred ninety-three thousand, ninety-seven".