521252302 has 16 divisors (see below), whose sum is σ = 789368832. Its totient is φ = 258139800.

The previous prime is 521252273. The next prime is 521252353. The reversal of 521252302 is 203252125.

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 7 ways as a sum of consecutive naturals, for example, 108483 + ... + 113185.

It is an arithmetic number, because the mean of its divisors is an integer number (49335552).

Almost surely, 2^521252302 is an apocalyptic number.

521252302 is a deficient number, since it is larger than the sum of its proper divisors (268116530).

521252302 is a wasteful number, since it uses less digits than its factorization.

521252302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5223.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 521252302 is about 22830.9505277376. The cubic root of 521252302 is about 804.7901679092.

The spelling of 521252302 in words is "five hundred twenty-one million, two hundred fifty-two thousand, three hundred two".