2505530028 has 24 divisors (see below), whose sum is σ = 5904123120. Its totient is φ = 826907200.

The previous prime is 2505530011. The next prime is 2505530051. The reversal of 2505530028 is 8200355052.

It is a junction number, because it is equal to n+sod(n) for n = 2505529977 and 2505530004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032423 + ... + 1034846.

It is an arithmetic number, because the mean of its divisors is an integer number (246005130).

Almost surely, 2^2505530028 is an apocalyptic number.

It is an amenable number.

2505530028 is an abundant number, since it is smaller than the sum of its proper divisors (3398593092).

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

2505530028 is a wasteful number, since it uses less digits than its factorization.

2505530028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067377 (or 2067375 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2505530028 is about 50055.2697325666. The cubic root of 2505530028 is about 1358.2087916962.

The spelling of 2505530028 in words is "two billion, five hundred five million, five hundred thirty thousand, twenty-eight".