521230002 has 64 divisors (see below), whose sum is σ = 1150848000. Its totient is φ = 156644928.

The previous prime is 521229967. The next prime is 521230019. The reversal of 521230002 is 200032125.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704949 + ... + 705687.

It is an arithmetic number, because the mean of its divisors is an integer number (17982000).

Almost surely, 2^521230002 is an apocalyptic number.

521230002 is an abundant number, since it is smaller than the sum of its proper divisors (629617998).

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

521230002 is a wasteful number, since it uses less digits than its factorization.

521230002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 521230002 is about 22830.4621503815. The cubic root of 521230002 is about 804.7786910123.

Adding to 521230002 its reverse (200032125), we get a palindrome (721262127).

The spelling of 521230002 in words is "five hundred twenty-one million, two hundred thirty thousand, two".