1553433222 has 32 divisors (see below), whose sum is σ = 3468136320. Its totient is φ = 459789120.

The previous prime is 1553433209. The next prime is 1553433223. The reversal of 1553433222 is 2223343551.

It is a self number, because there is not a number n which added to its sum of digits gives 1553433222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553433223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270847 + ... + 276522.

It is an arithmetic number, because the mean of its divisors is an integer number (108379260).

Almost surely, 2^1553433222 is an apocalyptic number.

1553433222 is an abundant number, since it is smaller than the sum of its proper divisors (1914703098).

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

1553433222 is a wasteful number, since it uses less digits than its factorization.

1553433222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547428.

The product of its digits is 21600, while the sum is 30.

The square root of 1553433222 is about 39413.6172153737. The cubic root of 1553433222 is about 1158.1483593227.

Adding to 1553433222 its reverse (2223343551), we get a palindrome (3776776773).

The spelling of 1553433222 in words is "one billion, five hundred fifty-three million, four hundred thirty-three thousand, two hundred twenty-two".