225012774444 has 24 divisors (see below), whose sum is σ = 525415612848. Its totient is φ = 74949143040.

The previous prime is 225012774403. The next prime is 225012774451. The reversal of 225012774444 is 444477210522.

It is a super-3 number, since 3×225012774444³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225012774396 and 225012774405.

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, 6872377 + ... + 6905040.

It is an arithmetic number, because the mean of its divisors is an integer number (21892317202).

Almost surely, 2^225012774444 is an apocalyptic number.

It is an amenable number.

225012774444 is an abundant number, since it is smaller than the sum of its proper divisors (300402838404).

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

225012774444 is a wasteful number, since it uses less digits than its factorization.

225012774444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778785 (or 13778783 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 42.

Adding to 225012774444 its reverse (444477210522), we get a palindrome (669489984966).

The spelling of 225012774444 in words is "two hundred twenty-five billion, twelve million, seven hundred seventy-four thousand, four hundred forty-four".