525015250 has 128 divisors (see below), whose sum is σ = 1120863744. Its totient is φ = 183040000.

The previous prime is 525015193. The next prime is 525015259. The reversal of 525015250 is 52510525.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (525015259) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4007685 + ... + 4007815.

It is an arithmetic number, because the mean of its divisors is an integer number (8756748).

Almost surely, 2^525015250 is an apocalyptic number.

525015250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

525015250 is an abundant number, since it is smaller than the sum of its proper divisors (595848494).

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

525015250 is a wasteful number, since it uses less digits than its factorization.

525015250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 525015250 is about 22913.2112546452. The cubic root of 525015250 is about 806.7221339801.

Adding to 525015250 its reverse (52510525), we get a palindrome (577525775).

The spelling of 525015250 in words is "five hundred twenty-five million, fifteen thousand, two hundred fifty".