225521045404 has 12 divisors (see below), whose sum is σ = 395318508928. Its totient is φ = 112572900000.

The previous prime is 225521045381. The next prime is 225521045419. The reversal of 225521045404 is 404540125522.

It is a super-2 number, since 2×225521045404² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225521045404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46902972 + ... + 46907779.

Almost surely, 2^225521045404 is an apocalyptic number.

It is an amenable number.

225521045404 is a deficient number, since it is larger than the sum of its proper divisors (169797463524).

225521045404 is a wasteful number, since it uses less digits than its factorization.

225521045404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93811356 (or 93811354 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 34.

The spelling of 225521045404 in words is "two hundred twenty-five billion, five hundred twenty-one million, forty-five thousand, four hundred four".