1003155552 has 72 divisors (see below), whose sum is σ = 3260262096. Its totient is φ = 286615296.

The previous prime is 1003155529. The next prime is 1003155563. The reversal of 1003155552 is 2555513001.

1003155552 is a `hidden beast` number, since 100 + 3 + 1 + 5 + 5 + 552 = 666.

1003155552 is digitally balanced in base 2, 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 (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246783 + ... + 250814.

It is an arithmetic number, because the mean of its divisors is an integer number (45281418).

Almost surely, 2^1003155552 is an apocalyptic number.

1003155552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1003155552 is an abundant number, since it is smaller than the sum of its proper divisors (2257106544).

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

1003155552 is a wasteful number, since it uses less digits than its factorization.

1003155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497620 (or 497609 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 1003155552 is about 31672.6309611311. The cubic root of 1003155552 is about 1001.0507462124.

Adding to 1003155552 its reverse (2555513001), we get a palindrome (3558668553).

The spelling of 1003155552 in words is "one billion, three million, one hundred fifty-five thousand, five hundred fifty-two".