525900128 has 48 divisors (see below), whose sum is σ = 1119575520. Its totient is φ = 241729536.

The previous prime is 525900127. The next prime is 525900139. The reversal of 525900128 is 821009525.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 525900094 and 525900103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525900121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104453 + ... + 109371.

It is an arithmetic number, because the mean of its divisors is an integer number (23324490).

Almost surely, 2^525900128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525900128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559787760).

525900128 is an abundant number, since it is smaller than the sum of its proper divisors (593675392).

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

525900128 is a wasteful number, since it uses less digits than its factorization.

525900128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199 (or 5191 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 525900128 is about 22932.5124659292. The cubic root of 525900128 is about 807.1751049458.

The spelling of 525900128 in words is "five hundred twenty-five million, nine hundred thousand, one hundred twenty-eight".