521162002 has 8 divisors (see below), whose sum is σ = 781885116. Its totient is φ = 260533632.

The previous prime is 521161957. The next prime is 521162003. The reversal of 521162002 is 200261125.

It can be written as a sum of positive squares in 2 ways, for example, as 513974241 + 7187761 = 22671^2 + 2681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (521162003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7803 + ... + 33214.

Almost surely, 2^521162002 is an apocalyptic number.

521162002 is a deficient number, since it is larger than the sum of its proper divisors (260723114).

521162002 is a wasteful number, since it uses less digits than its factorization.

521162002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47372.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 521162002 is about 22828.9728634470. The cubic root of 521162002 is about 804.7436921757.

The spelling of 521162002 in words is "five hundred twenty-one million, one hundred sixty-two thousand, two".