521282125 has 32 divisors (see below), whose sum is σ = 800706816. Its totient is φ = 329947200.

The previous prime is 521282117. The next prime is 521282129.

521282125 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 521282125 - 2³ = 521282117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521282093 and 521282102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521282129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11539 + ... + 34288.

It is an arithmetic number, because the mean of its divisors is an integer number (25022088).

Almost surely, 2^521282125 is an apocalyptic number.

It is an amenable number.

521282125 is a deficient number, since it is larger than the sum of its proper divisors (279424691).

521282125 is a wasteful number, since it uses less digits than its factorization.

521282125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45862 (or 45852 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

The square root of 521282125 is about 22831.6036449479. The cubic root of 521282125 is about 804.8055160744.

The spelling of 521282125 in words is "five hundred twenty-one million, two hundred eighty-two thousand, one hundred twenty-five".