525131250 has 96 divisors (see below), whose sum is σ = 1500653952. Its totient is φ = 120000000.

The previous prime is 525131231. The next prime is 525131251. The reversal of 525131250 is 52131525.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 525131250.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525131251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129250 + ... + 133250.

It is an arithmetic number, because the mean of its divisors is an integer number (15631812).

Almost surely, 2^525131250 is an apocalyptic number.

525131250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 525131250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750326976).

525131250 is an abundant number, since it is smaller than the sum of its proper divisors (975522702).

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

525131250 is an equidigital number, since it uses as much as digits as its factorization.

525131250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 525131250 is about 22915.7424056041. The cubic root of 525131250 is about 806.7815436045.

Adding to 525131250 its reverse (52131525), we get a palindrome (577262775).

The spelling of 525131250 in words is "five hundred twenty-five million, one hundred thirty-one thousand, two hundred fifty".