404251131002225 has 24 divisors (see below), whose sum is σ = 552384944392512. Its totient is φ = 291581495553600.

The previous prime is 404251131002183. The next prime is 404251131002237. The reversal of 404251131002225 is 522200131152404.

It is not a de Polignac number, because 404251131002225 - 2⁸ = 404251131001969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404251131002191 and 404251131002200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14463353861 + ... + 14463381810.

It is an arithmetic number, because the mean of its divisors is an integer number (23016039349688).

Almost surely, 2^{404251131002225} is an apocalyptic number.

It is an amenable number.

404251131002225 is a deficient number, since it is larger than the sum of its proper divisors (148133813390287).

404251131002225 is a wasteful number, since it uses less digits than its factorization.

404251131002225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28926735737 (or 28926735732 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 404251131002225 its reverse (522200131152404), we get a palindrome (926451262154629).

The spelling of 404251131002225 in words is "four hundred four trillion, two hundred fifty-one billion, one hundred thirty-one million, two thousand, two hundred twenty-five".