418499017225 has 27 divisors (see below), whose sum is σ = 524184970197. Its totient is φ = 331448194080.

The previous prime is 418499017217. The next prime is 418499017253. The reversal of 418499017225 is 522710994814.

The square root of 418499017225 is 646915.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1534367241 + 416964649984 = 39171^2 + 645728^2 .

It is not a de Polignac number, because 418499017225 - 2³ = 418499017217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 352568082 + ... + 352569268.

Almost surely, 2^418499017225 is an apocalyptic number.

418499017225 is the 646915-th square number.

418499017225 is the 323458-th centered octagonal number.

It is an amenable number.

418499017225 is a deficient number, since it is larger than the sum of its proper divisors (105685952972).

418499017225 is an frugal number, since it uses more digits than its factorization.

418499017225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602 (or 1301 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 418499017225 in words is "four hundred eighteen billion, four hundred ninety-nine million, seventeen thousand, two hundred twenty-five".