521452125 has 24 divisors (see below), whose sum is σ = 940006392. Its totient is φ = 278107200.

The previous prime is 521452111. The next prime is 521452153. The reversal of 521452125 is 521254125.

It can be written as a sum of positive squares in 4 ways, for example, as 2842596 + 518609529 = 1686^2 + 22773^2 .

It is not a de Polignac number, because 521452125 - 2⁴ = 521452109 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 230632 + ... + 232881.

It is an arithmetic number, because the mean of its divisors is an integer number (39166933).

Almost surely, 2^521452125 is an apocalyptic number.

It is an amenable number.

521452125 is a deficient number, since it is larger than the sum of its proper divisors (418554267).

521452125 is a wasteful number, since it uses less digits than its factorization.

521452125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463534 (or 463521 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 521452125 is about 22835.3262512275. The cubic root of 521452125 is about 804.8929940197.

The spelling of 521452125 in words is "five hundred twenty-one million, four hundred fifty-two thousand, one hundred twenty-five".