1603155552 has 96 divisors (see below), whose sum is σ = 4505155200. Its totient is φ = 497645568.

The previous prime is 1603155523. The next prime is 1603155559. The reversal of 1603155552 is 2555513061.

1603155552 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603155559) 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, 100168 + ... + 115064.

It is an arithmetic number, because the mean of its divisors is an integer number (46928700).

Almost surely, 2^1603155552 is an apocalyptic number.

1603155552 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 1603155552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2252577600).

1603155552 is an abundant number, since it is smaller than the sum of its proper divisors (2901999648).

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

1603155552 is a wasteful number, since it uses less digits than its factorization.

1603155552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14988 (or 14980 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 1603155552 is about 40039.4249708959. The cubic root of 1603155552 is about 1170.3754978552.

The spelling of 1603155552 in words is "one billion, six hundred three million, one hundred fifty-five thousand, five hundred fifty-two".