521264983 has 8 divisors (see below), whose sum is σ = 527971248. Its totient is φ = 514569024.

The previous prime is 521264957. The next prime is 521264987. The reversal of 521264983 is 389462125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-521264983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521264987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177241 + ... + 180157.

It is an arithmetic number, because the mean of its divisors is an integer number (65996406).

Almost surely, 2^521264983 is an apocalyptic number.

521264983 is a deficient number, since it is larger than the sum of its proper divisors (6706265).

521264983 is a wasteful number, since it uses less digits than its factorization.

521264983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153.

The product of its digits is 103680, while the sum is 40.

The square root of 521264983 is about 22831.2282411613. The cubic root of 521264983 is about 804.7966941546.

The spelling of 521264983 in words is "five hundred twenty-one million, two hundred sixty-four thousand, nine hundred eighty-three".