521331041 has 36 divisors (see below), whose sum is σ = 695753856. Its totient is φ = 388468080.

The previous prime is 521331029. The next prime is 521331049. The reversal of 521331041 is 140133125.

It is not a de Polignac number, because 521331041 - 2¹⁴ = 521314657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (521331049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 134456 + ... + 138278.

It is an arithmetic number, because the mean of its divisors is an integer number (19326496).

Almost surely, 2^521331041 is an apocalyptic number.

It is an amenable number.

521331041 is a deficient number, since it is larger than the sum of its proper divisors (174422815).

521331041 is a wasteful number, since it uses less digits than its factorization.

521331041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882 (or 3864 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 521331041 is about 22832.6748542522. The cubic root of 521331041 is about 804.8306890300.

Adding to 521331041 its reverse (140133125), we get a palindrome (661464166).

The spelling of 521331041 in words is "five hundred twenty-one million, three hundred thirty-one thousand, forty-one".