521552083 has 6 divisors (see below), whose sum is σ = 564757764. Its totient is φ = 481432536.

The previous prime is 521552069. The next prime is 521552113. The reversal of 521552083 is 380255125.

It is not a de Polignac number, because 521552083 - 2⁹ = 521551571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521592083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1542885 + ... + 1543222.

It is an arithmetic number, because the mean of its divisors is an integer number (94126294).

Almost surely, 2^521552083 is an apocalyptic number.

521552083 is a deficient number, since it is larger than the sum of its proper divisors (43205681).

521552083 is a wasteful number, since it uses less digits than its factorization.

521552083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086133 (or 3086120 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 521552083 is about 22837.5148166345. The cubic root of 521552083 is about 804.9444211464.

The spelling of 521552083 in words is "five hundred twenty-one million, five hundred fifty-two thousand, eighty-three".