404521522245 has 12 divisors (see below), whose sum is σ = 701170638636. Its totient is φ = 215744811840.

The previous prime is 404521522241. The next prime is 404521522247. The reversal of 404521522245 is 542225125404.

404521522245 is a `hidden beast` number, since 40 + 4 + 52 + 1 + 522 + 2 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 229143158721 + 175378363524 = 478689^2 + 418782^2 .

It is not a de Polignac number, because 404521522245 - 2² = 404521522241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404521522241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4494683536 + ... + 4494683625.

It is an arithmetic number, because the mean of its divisors is an integer number (58430886553).

Almost surely, 2^404521522245 is an apocalyptic number.

404521522245 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

404521522245 is a deficient number, since it is larger than the sum of its proper divisors (296649116391).

404521522245 is a wasteful number, since it uses less digits than its factorization.

404521522245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8989367172 (or 8989367169 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 404521522245 its reverse (542225125404), we get a palindrome (946746647649).

The spelling of 404521522245 in words is "four hundred four billion, five hundred twenty-one million, five hundred twenty-two thousand, two hundred forty-five".