1553322428 has 24 divisors (see below), whose sum is σ = 3270153600. Its totient is φ = 630672048.

The previous prime is 1553322403. The next prime is 1553322469. The reversal of 1553322428 is 8242233551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1459358 + ... + 1460421.

It is an arithmetic number, because the mean of its divisors is an integer number (136256400).

Almost surely, 2^1553322428 is an apocalyptic number.

It is an amenable number.

1553322428 is an abundant number, since it is smaller than the sum of its proper divisors (1716831172).

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

1553322428 is a wasteful number, since it uses less digits than its factorization.

1553322428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919809 (or 2919807 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 1553322428 is about 39412.2116608546. The cubic root of 1553322428 is about 1158.1208248401.

Adding to 1553322428 its reverse (8242233551), we get a palindrome (9795555979).

The spelling of 1553322428 in words is "one billion, five hundred fifty-three million, three hundred twenty-two thousand, four hundred twenty-eight".