1503155052 has 72 divisors (see below), whose sum is σ = 4370221856. Its totient is φ = 426726144.

The previous prime is 1503155033. The next prime is 1503155083. The reversal of 1503155052 is 2505513051.

1503155052 is a `hidden beast` number, since 1 + 503 + 155 + 0 + 5 + 2 = 666.

It is a super-2 number, since 2×1503155052² = 4518950220706245408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20568 + ... + 58560.

Almost surely, 2^1503155052 is an apocalyptic number.

1503155052 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 1503155052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2185110928).

1503155052 is an abundant number, since it is smaller than the sum of its proper divisors (2867066804).

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

1503155052 is a wasteful number, since it uses less digits than its factorization.

1503155052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38167 (or 38162 counting only the distinct ones).

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

The square root of 1503155052 is about 38770.5436123870. The cubic root of 1503155052 is about 1145.5162656017.

The spelling of 1503155052 in words is "one billion, five hundred three million, one hundred fifty-five thousand, fifty-two".