225455143042440 has 96 divisors (see below), whose sum is σ = 732824051057280. Its totient is φ = 60113590048896.

The previous prime is 225455143042439. The next prime is 225455143042463. The reversal of 225455143042440 is 44240341554522.

225455143042440 is a `hidden beast` number, since 2 + 2 + 5 + 4 + 551 + 4 + 30 + 4 + 24 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 37742694 + ... + 43306133.

It is an arithmetic number, because the mean of its divisors is an integer number (7633583865180).

Almost surely, 2^{225455143042440} is an apocalyptic number.

225455143042440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225455143042440 is an abundant number, since it is smaller than the sum of its proper divisors (507368908014840).

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

225455143042440 is a wasteful number, since it uses less digits than its factorization.

225455143042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81056571 (or 81056564 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 45.

Adding to 225455143042440 its reverse (44240341554522), we get a palindrome (269695484596962).

The spelling of 225455143042440 in words is "two hundred twenty-five trillion, four hundred fifty-five billion, one hundred forty-three million, forty-two thousand, four hundred forty".