418303253 has 2 divisors, whose sum is σ = 418303254. Its totient is φ = 418303252.

The previous prime is 418303229. The next prime is 418303267. The reversal of 418303253 is 352303814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324252049 + 94051204 = 18007^2 + 9698^2 .

It is a cyclic number.

It is not a de Polignac number, because 418303253 - 2¹⁰ = 418302229 is a prime.

It is a super-2 number, since 2×418303253² = 349955222940764018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418303273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209151626 + 209151627.

It is an arithmetic number, because the mean of its divisors is an integer number (209151627).

Almost surely, 2^418303253 is an apocalyptic number.

It is an amenable number.

418303253 is a deficient number, since it is larger than the sum of its proper divisors (1).

418303253 is an equidigital number, since it uses as much as digits as its factorization.

418303253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 418303253 is about 20452.4632501809. The cubic root of 418303253 is about 747.8774076545.

The spelling of 418303253 in words is "four hundred eighteen million, three hundred three thousand, two hundred fifty-three".