521066106 has 24 divisors (see below), whose sum is σ = 1231611264. Its totient is φ = 157898760.

The previous prime is 521066101. The next prime is 521066149. The reversal of 521066106 is 601660125.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 521066106.

It is not an unprimeable number, because it can be changed into a prime (521066101) 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, 1315626 + ... + 1316021.

It is an arithmetic number, because the mean of its divisors is an integer number (51317136).

Almost surely, 2^521066106 is an apocalyptic number.

521066106 is an abundant number, since it is smaller than the sum of its proper divisors (710545158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521066106 is a wasteful number, since it uses less digits than its factorization.

521066106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631666 (or 2631663 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 521066106 is about 22826.8724533169. The cubic root of 521066106 is about 804.6943304068.

The spelling of 521066106 in words is "five hundred twenty-one million, sixty-six thousand, one hundred six".