521460650 has 24 divisors (see below), whose sum is σ = 970627980. Its totient is φ = 208431360.

The previous prime is 521460557. The next prime is 521460659. The reversal of 521460650 is 56064125.

It can be written as a sum of positive squares in 6 ways, for example, as 83521321 + 437939329 = 9139^2 + 20927^2 .

It is not an unprimeable number, because it can be changed into a prime (521460659) 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 11 ways as a sum of consecutive naturals, for example, 85916 + ... + 91784.

Almost surely, 2^521460650 is an apocalyptic number.

521460650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

521460650 is a deficient number, since it is larger than the sum of its proper divisors (449167330).

521460650 is a wasteful number, since it uses less digits than its factorization.

521460650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658 (or 7653 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 521460650 is about 22835.5129130046. The cubic root of 521460650 is about 804.8973802807.

The spelling of 521460650 in words is "five hundred twenty-one million, four hundred sixty thousand, six hundred fifty".