525507825 has 48 divisors (see below), whose sum is σ = 922815936. Its totient is φ = 262963200.

The previous prime is 525507821. The next prime is 525507881. The reversal of 525507825 is 528705525.

It is not a de Polignac number, because 525507825 - 2² = 525507821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (525507821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 816954 + ... + 817596.

It is an arithmetic number, because the mean of its divisors is an integer number (19225332).

Almost surely, 2^525507825 is an apocalyptic number.

It is an amenable number.

525507825 is a deficient number, since it is larger than the sum of its proper divisors (397308111).

525507825 is a wasteful number, since it uses less digits than its factorization.

525507825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 39.

The square root of 525507825 is about 22923.9574463049. The cubic root of 525507825 is about 806.9743469379.

The spelling of 525507825 in words is "five hundred twenty-five million, five hundred seven thousand, eight hundred twenty-five".