2128588025 has 12 divisors (see below), whose sum is σ = 2640446700. Its totient is φ = 1702226880.

The previous prime is 2128588019. The next prime is 2128588027. The reversal of 2128588025 is 5208858212.

It can be written as a sum of positive squares in 6 ways, for example, as 35617024 + 2092971001 = 5968^2 + 45749^2 .

It is not a de Polignac number, because 2128588025 - 2¹² = 2128583929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2128588027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58091 + ... + 87359.

It is an arithmetic number, because the mean of its divisors is an integer number (220037225).

Almost surely, 2^2128588025 is an apocalyptic number.

2128588025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2128588025 is a deficient number, since it is larger than the sum of its proper divisors (511858675).

2128588025 is a wasteful number, since it uses less digits than its factorization.

2128588025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32188 (or 32183 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 2128588025 is about 46136.6234676965. The cubic root of 2128588025 is about 1286.3639823839.

The spelling of 2128588025 in words is "two billion, one hundred twenty-eight million, five hundred eighty-eight thousand, twenty-five".