253563697 has 2 divisors, whose sum is σ = 253563698. Its totient is φ = 253563696.

The previous prime is 253563691. The next prime is 253563719. The reversal of 253563697 is 796365352.

253563697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195132961 + 58430736 = 13969^2 + 7644^2 .

It is a cyclic number.

It is not a de Polignac number, because 253563697 - 2³ = 253563689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253563691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126781848 + 126781849.

It is an arithmetic number, because the mean of its divisors is an integer number (126781849).

Almost surely, 2^253563697 is an apocalyptic number.

It is an amenable number.

253563697 is a deficient number, since it is larger than the sum of its proper divisors (1).

253563697 is an equidigital number, since it uses as much as digits as its factorization.

253563697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 46.

The square root of 253563697 is about 15923.6835248632. The cubic root of 253563697 is about 632.9397313981.

The spelling of 253563697 in words is "two hundred fifty-three million, five hundred sixty-three thousand, six hundred ninety-seven".