1001525250 has 256 divisors, whose sum is σ = 2980882944. Its totient is φ = 221184000.

The previous prime is 1001525221. The next prime is 1001525251. The reversal of 1001525250 is 525251001.

It is not an unprimeable number, because it can be changed into a prime (1001525251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5189154 + ... + 5189346.

It is an arithmetic number, because the mean of its divisors is an integer number (11644074).

Almost surely, 2^1001525250 is an apocalyptic number.

1001525250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001525250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490441472).

1001525250 is an abundant number, since it is smaller than the sum of its proper divisors (1979357694).

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

1001525250 is a wasteful number, since it uses less digits than its factorization.

1001525250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1001525250 is about 31646.8837328417. The cubic root of 1001525250 is about 1000.5081583980.

Adding to 1001525250 its reverse (525251001), we get a palindrome (1526776251).

The spelling of 1001525250 in words is "one billion, one million, five hundred twenty-five thousand, two hundred fifty".