225435512420 has 24 divisors (see below), whose sum is σ = 473464288248. Its totient is φ = 90164736000.

The previous prime is 225435512417. The next prime is 225435512507. The reversal of 225435512420 is 24215534522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4405773376 + 221029739044 = 66376^2 + 470138^2 .

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, 394991 + ... + 779030.

It is an arithmetic number, because the mean of its divisors is an integer number (19727678677).

Almost surely, 2^225435512420 is an apocalyptic number.

225435512420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225435512420 is an abundant number, since it is smaller than the sum of its proper divisors (248028775828).

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

225435512420 is a wasteful number, since it uses less digits than its factorization.

225435512420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183631 (or 1183629 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 225435512420 in words is "two hundred twenty-five billion, four hundred thirty-five million, five hundred twelve thousand, four hundred twenty".