521053540606 has 16 divisors (see below), whose sum is σ = 789635744640. Its totient is φ = 257846261400.

The previous prime is 521053540603. The next prime is 521053540613. The reversal of 521053540606 is 606045350125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521053540603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933426 + ... + 1383253.

It is an arithmetic number, because the mean of its divisors is an integer number (49352234040).

Almost surely, 2^521053540606 is an apocalyptic number.

521053540606 is a deficient number, since it is larger than the sum of its proper divisors (268582204034).

521053540606 is a wasteful number, since it uses less digits than its factorization.

521053540606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317839.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 521053540606 in words is "five hundred twenty-one billion, fifty-three million, five hundred forty thousand, six hundred six".