1553213552 has 160 divisors (see below), whose sum is σ = 3606197760. Its totient is φ = 640640000.

The previous prime is 1553213531. The next prime is 1553213569. The reversal of 1553213552 is 2553123551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11856527 + ... + 11856657.

It is an arithmetic number, because the mean of its divisors is an integer number (22538736).

Almost surely, 2^1553213552 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 1553213552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1803098880).

1553213552 is an abundant number, since it is smaller than the sum of its proper divisors (2052984208).

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

1553213552 is a wasteful number, since it uses less digits than its factorization.

1553213552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 297 counting only the distinct ones).

The product of its digits is 22500, while the sum is 32.

The square root of 1553213552 is about 39410.8303896277. The cubic root of 1553213552 is about 1158.0937657426.

Subtracting 1553213552 from its reverse (2553123551), we obtain a palindrome (999909999).

The spelling of 1553213552 in words is "one billion, five hundred fifty-three million, two hundred thirteen thousand, five hundred fifty-two".