525128 has 16 divisors (see below), whose sum is σ = 1009260. Its totient is φ = 256000.

The previous prime is 525127. The next prime is 525137. The reversal of 525128 is 821525.

It can be written as a sum of positive squares in 2 ways, for example, as 521284 + 3844 = 722^2 + 62^2 .

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (525127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473 + ... + 1128.

2⁵²⁵¹²⁸ is an apocalyptic number.

It is an amenable number.

525128 is a deficient number, since it is larger than the sum of its proper divisors (484132).

525128 is a wasteful number, since it uses less digits than its factorization.

525128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648 (or 1644 counting only the distinct ones).

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

The square root of 525128 is about 724.6571603179. The cubic root of 525128 is about 80.6779879230.

The spelling of 525128 in words is "five hundred twenty-five thousand, one hundred twenty-eight".