225553017822 has 64 divisors (see below), whose sum is σ = 496448206848. Its totient is φ = 67748876000.

The previous prime is 225553017821. The next prime is 225553017967. The reversal of 225553017822 is 228710355522.

It is a super-2 number, since 2×225553017822² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225553017821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7654297 + ... + 7683707.

It is an arithmetic number, because the mean of its divisors is an integer number (7757003232).

Almost surely, 2^225553017822 is an apocalyptic number.

225553017822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 225553017822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248224103424).

225553017822 is an abundant number, since it is smaller than the sum of its proper divisors (270895189026).

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

225553017822 is a wasteful number, since it uses less digits than its factorization.

225553017822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30445.

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 225553017822 in words is "two hundred twenty-five billion, five hundred fifty-three million, seventeen thousand, eight hundred twenty-two".