1533223552 has 64 divisors (see below), whose sum is σ = 3496233600. Its totient is φ = 656077824.

The previous prime is 1533223541. The next prime is 1533223553. The reversal of 1533223552 is 2553223351.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1533223553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992893 + ... + 994435.

It is an arithmetic number, because the mean of its divisors is an integer number (54628650).

Almost surely, 2^1533223552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1533223552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1748116800).

1533223552 is an abundant number, since it is smaller than the sum of its proper divisors (1963010048).

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

1533223552 is a wasteful number, since it uses less digits than its factorization.

1533223552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2661 counting only the distinct ones).

The product of its digits is 27000, while the sum is 31.

The square root of 1533223552 is about 39156.3986086565. The cubic root of 1533223552 is about 1153.1040406068.

The spelling of 1533223552 in words is "one billion, five hundred thirty-three million, two hundred twenty-three thousand, five hundred fifty-two".