521150521 has 12 divisors (see below), whose sum is σ = 554766192. Its totient is φ = 489470528.

The previous prime is 521150501. The next prime is 521150527. The reversal of 521150521 is 125051125.

It is a happy number.

It is not a de Polignac number, because 521150521 - 2⁵ = 521150489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 521150492 and 521150501.

It is not an unprimeable number, because it can be changed into a prime (521150527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161106 + ... + 164308.

It is an arithmetic number, because the mean of its divisors is an integer number (46230516).

Almost surely, 2^521150521 is an apocalyptic number.

It is an amenable number.

521150521 is a deficient number, since it is larger than the sum of its proper divisors (33615671).

521150521 is a wasteful number, since it uses less digits than its factorization.

521150521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800 (or 3783 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 521150521 is about 22828.7214052824. The cubic root of 521150521 is about 804.7377827335.

The spelling of 521150521 in words is "five hundred twenty-one million, one hundred fifty thousand, five hundred twenty-one".