253767641 has 2 divisors, whose sum is σ = 253767642. Its totient is φ = 253767640.

The previous prime is 253767601. The next prime is 253767649. The reversal of 253767641 is 146767352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219662041 + 34105600 = 14821^2 + 5840^2 .

It is a cyclic number.

It is not a de Polignac number, because 253767641 - 2¹⁴ = 253751257 is a prime.

It is not a weakly prime, because it can be changed into another prime (253767649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126883820 + 126883821.

It is an arithmetic number, because the mean of its divisors is an integer number (126883821).

Almost surely, 2^253767641 is an apocalyptic number.

It is an amenable number.

253767641 is a deficient number, since it is larger than the sum of its proper divisors (1).

253767641 is an equidigital number, since it uses as much as digits as its factorization.

253767641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 41.

The square root of 253767641 is about 15930.0860324105. The cubic root of 253767641 is about 633.1093793269.

The spelling of 253767641 in words is "two hundred fifty-three million, seven hundred sixty-seven thousand, six hundred forty-one".