253534417 has 2 divisors, whose sum is σ = 253534418. Its totient is φ = 253534416.

The previous prime is 253534363. The next prime is 253534439. The reversal of 253534417 is 714435352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242238096 + 11296321 = 15564^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 253534417 - 2⁷ = 253534289 is a prime.

It is not a weakly prime, because it can be changed into another prime (253534517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126767208 + 126767209.

It is an arithmetic number, because the mean of its divisors is an integer number (126767209).

Almost surely, 2^253534417 is an apocalyptic number.

It is an amenable number.

253534417 is a deficient number, since it is larger than the sum of its proper divisors (1).

253534417 is an equidigital number, since it uses as much as digits as its factorization.

253534417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 34.

The square root of 253534417 is about 15922.7641130552. The cubic root of 253534417 is about 632.9153677780.

Adding to 253534417 its reverse (714435352), we get a palindrome (967969769).

The spelling of 253534417 in words is "two hundred fifty-three million, five hundred thirty-four thousand, four hundred seventeen".