1553103552 has 224 divisors, whose sum is σ = 5518001664. Its totient is φ = 372326400.

The previous prime is 1553103523. The next prime is 1553103557. The reversal of 1553103552 is 2553013551.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (1553103557) 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, 188152 + ... + 196232.

It is an arithmetic number, because the mean of its divisors is an integer number (24633936).

Almost surely, 2^1553103552 is an apocalyptic number.

1553103552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1553103552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2759000832).

1553103552 is an abundant number, since it is smaller than the sum of its proper divisors (3964898112).

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

1553103552 is a wasteful number, since it uses less digits than its factorization.

1553103552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127 (or 8117 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1553103552 is about 39409.4348094463. The cubic root of 1553103552 is about 1158.0664260117.

Subtracting 1553103552 from its reverse (2553013551), we obtain a palindrome (999909999).

The spelling of 1553103552 in words is "one billion, five hundred fifty-three million, one hundred three thousand, five hundred fifty-two".