521483812 has 6 divisors (see below), whose sum is σ = 912596678. Its totient is φ = 260741904.

The previous prime is 521483803. The next prime is 521483839. The reversal of 521483812 is 218384125.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 446730496 + 74753316 = 21136^2 + 8646^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65185473 + ... + 65185480.

Almost surely, 2^521483812 is an apocalyptic number.

It is an amenable number.

521483812 is a deficient number, since it is larger than the sum of its proper divisors (391112866).

521483812 is a wasteful number, since it uses less digits than its factorization.

521483812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130370957 (or 130370955 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 521483812 is about 22836.0200560430. The cubic root of 521483812 is about 804.9092972918.

The spelling of 521483812 in words is "five hundred twenty-one million, four hundred eighty-three thousand, eight hundred twelve".