521374611 has 12 divisors (see below), whose sum is σ = 733681032. Its totient is φ = 329288544.

The previous prime is 521374597. The next prime is 521374643. The reversal of 521374611 is 116473125.

It is not a de Polignac number, because 521374611 - 2⁹ = 521374099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (521370611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239626 + ... + 241791.

It is an arithmetic number, because the mean of its divisors is an integer number (61140086).

Almost surely, 2^521374611 is an apocalyptic number.

521374611 is a deficient number, since it is larger than the sum of its proper divisors (212306421).

521374611 is a wasteful number, since it uses less digits than its factorization.

521374611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481458 (or 481439 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 521374611 is about 22833.6289494246. The cubic root of 521374611 is about 804.8531095226.

The spelling of 521374611 in words is "five hundred twenty-one million, three hundred seventy-four thousand, six hundred eleven".