553645422 has 64 divisors (see below), whose sum is σ = 1353438720. Its totient is φ = 167749560.

The previous prime is 553645403. The next prime is 553645429. The reversal of 553645422 is 224546355.

553645422 is a `hidden beast` number, since 5 + 5 + 3 + 645 + 4 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553645429) 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, 68023 + ... + 75725.

It is an arithmetic number, because the mean of its divisors is an integer number (21147480).

Almost surely, 2^553645422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 553645422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676719360).

553645422 is an abundant number, since it is smaller than the sum of its proper divisors (799793298).

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

553645422 is a wasteful number, since it uses less digits than its factorization.

553645422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747 (or 7719 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

The square root of 553645422 is about 23529.6710984238. The cubic root of 553645422 is about 821.1274506990.

The spelling of 553645422 in words is "five hundred fifty-three million, six hundred forty-five thousand, four hundred twenty-two".