525250128 has 80 divisors (see below), whose sum is σ = 1464656256. Its totient is φ = 161241600.

The previous prime is 525250127. The next prime is 525250147. The reversal of 525250128 is 821052525.

It is a junction number, because it is equal to n+sod(n) for n = 525250095 and 525250104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525250123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403078 + ... + 404378.

Almost surely, 2^525250128 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 525250128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732328128).

525250128 is an abundant number, since it is smaller than the sum of its proper divisors (939406128).

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

525250128 is a wasteful number, since it uses less digits than its factorization.

525250128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 525250128 is about 22918.3360652557. The cubic root of 525250128 is about 806.8424181255.

The spelling of 525250128 in words is "five hundred twenty-five million, two hundred fifty thousand, one hundred twenty-eight".