225818624040 has 32 divisors (see below), whose sum is σ = 677455872480. Its totient is φ = 60218299712.

The previous prime is 225818624029. The next prime is 225818624063. The reversal of 225818624040 is 40426818522.

It is a junction number, because it is equal to n+sod(n) for n = 225818623983 and 225818624001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940910814 + ... + 940911053.

It is an arithmetic number, because the mean of its divisors is an integer number (21170496015).

Almost surely, 2^225818624040 is an apocalyptic number.

225818624040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225818624040 is an abundant number, since it is smaller than the sum of its proper divisors (451637248440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225818624040 is a wasteful number, since it uses less digits than its factorization.

225818624040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881821881 (or 1881821877 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 225818624040 in words is "two hundred twenty-five billion, eight hundred eighteen million, six hundred twenty-four thousand, forty".