403116253 has 2 divisors, whose sum is σ = 403116254. Its totient is φ = 403116252.

The previous prime is 403116229. The next prime is 403116299. The reversal of 403116253 is 352611304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 344547844 + 58568409 = 18562^2 + 7653^2 .

It is a cyclic number.

It is not a de Polignac number, because 403116253 - 2¹³ = 403108061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403146253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201558126 + 201558127.

It is an arithmetic number, because the mean of its divisors is an integer number (201558127).

Almost surely, 2^403116253 is an apocalyptic number.

It is an amenable number.

403116253 is a deficient number, since it is larger than the sum of its proper divisors (1).

403116253 is an equidigital number, since it uses as much as digits as its factorization.

403116253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 403116253 is about 20077.7551783062. The cubic root of 403116253 is about 738.7147479702.

Adding to 403116253 its reverse (352611304), we get a palindrome (755727557).

It can be divided in two parts, 40311 and 6253, that added together give a palindrome (46564).

The spelling of 403116253 in words is "four hundred three million, one hundred sixteen thousand, two hundred fifty-three".