253153717 has 2 divisors, whose sum is σ = 253153718. Its totient is φ = 253153716.

The previous prime is 253153697. The next prime is 253153727. The reversal of 253153717 is 717351352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 253000836 + 152881 = 15906^2 + 391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253153717 is a prime.

It is equal to p_13842295 and since 253153717 and 13842295 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253153727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126576858 + 126576859.

It is an arithmetic number, because the mean of its divisors is an integer number (126576859).

Almost surely, 2^253153717 is an apocalyptic number.

It is an amenable number.

253153717 is a deficient number, since it is larger than the sum of its proper divisors (1).

253153717 is an equidigital number, since it uses as much as digits as its factorization.

253153717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22050, while the sum is 34.

The square root of 253153717 is about 15910.8050393435. The cubic root of 253153717 is about 632.5984199047.

The spelling of 253153717 in words is "two hundred fifty-three million, one hundred fifty-three thousand, seven hundred seventeen".