521461608 has 16 divisors (see below), whose sum is σ = 1303654080. Its totient is φ = 173820528.

The previous prime is 521461607. The next prime is 521461637. The reversal of 521461608 is 806164125.

It is not an unprimeable number, because it can be changed into a prime (521461601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10863760 + ... + 10863807.

It is an arithmetic number, because the mean of its divisors is an integer number (81478380).

Almost surely, 2^521461608 is an apocalyptic number.

It is an amenable number.

521461608 is an abundant number, since it is smaller than the sum of its proper divisors (782192472).

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

521461608 is a wasteful number, since it uses less digits than its factorization.

521461608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21727576 (or 21727572 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 521461608 is about 22835.5338890949. The cubic root of 521461608 is about 804.8978731854.

The spelling of 521461608 in words is "five hundred twenty-one million, four hundred sixty-one thousand, six hundred eight".