2505128 has 16 divisors (see below), whose sum is σ = 4714080. Its totient is φ = 1248048.

The previous prime is 2505127. The next prime is 2505133. The reversal of 2505128 is 8215052.

It is not an unprimeable number, because it can be changed into a prime (2505121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3575 + ... + 4217.

It is an arithmetic number, because the mean of its divisors is an integer number (294630).

2^2505128 is an apocalyptic number.

It is an amenable number.

2505128 is a deficient number, since it is larger than the sum of its proper divisors (2208952).

2505128 is a wasteful number, since it uses less digits than its factorization.

2505128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2505128 is about 1582.7596153554. The cubic root of 2505128 is about 135.8136143439.

The spelling of 2505128 in words is "two million, five hundred five thousand, one hundred twenty-eight".