521233030 has 16 divisors (see below), whose sum is σ = 938484864. Its totient is φ = 208434240.

The previous prime is 521233021. The next prime is 521233051. The reversal of 521233030 is 30332125.

It is a junction number, because it is equal to n+sod(n) for n = 521232989 and 521233007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54379 + ... + 63241.

It is an arithmetic number, because the mean of its divisors is an integer number (58655304).

Almost surely, 2^521233030 is an apocalyptic number.

521233030 is a deficient number, since it is larger than the sum of its proper divisors (417251834).

521233030 is a wasteful number, since it uses less digits than its factorization.

521233030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14751.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 521233030 is about 22830.5284651933. The cubic root of 521233030 is about 804.7802494191.

Adding to 521233030 its reverse (30332125), we get a palindrome (551565155).

The spelling of 521233030 in words is "five hundred twenty-one million, two hundred thirty-three thousand, thirty".