404998596025 has 27 divisors (see below), whose sum is σ = 533548306669. Its totient is φ = 304899390080.

The previous prime is 404998595971. The next prime is 404998596049. The reversal of 404998596025 is 520695899404.

The square root of 404998596025 is 636395.

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 9473323561 + 395525272464 = 97331^2 + 628908^2 .

It is not a de Polignac number, because 404998596025 - 2¹⁵ = 404998563257 is a prime.

It is a super-2 number, since 2×404998596025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 54089832 + ... + 54097318.

Almost surely, 2^404998596025 is an apocalyptic number.

404998596025 is the 636395-th square number.

404998596025 is the 318198-th centered octagonal number.

It is an amenable number.

404998596025 is a deficient number, since it is larger than the sum of its proper divisors (128549710644).

404998596025 is an frugal number, since it uses more digits than its factorization.

404998596025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15018 (or 7509 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 404998596025 in words is "four hundred four billion, nine hundred ninety-eight million, five hundred ninety-six thousand, twenty-five".