225156345450 has 48 divisors (see below), whose sum is σ = 561944405280. Its totient is φ = 59659254720.

The previous prime is 225156345437. The next prime is 225156345461. The reversal of 225156345450 is 54543651522.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4756840 + ... + 4803939.

It is an arithmetic number, because the mean of its divisors is an integer number (11707175110).

Almost surely, 2^225156345450 is an apocalyptic number.

225156345450 is an abundant number, since it is smaller than the sum of its proper divisors (336788059830).

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

225156345450 is a wasteful number, since it uses less digits than its factorization.

225156345450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560951 (or 9560946 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 225156345450 its reverse (54543651522), we get a palindrome (279699996972).

The spelling of 225156345450 in words is "two hundred twenty-five billion, one hundred fifty-six million, three hundred forty-five thousand, four hundred fifty".