521245250230 has 16 divisors (see below), whose sum is σ = 944538375600. Its totient is φ = 207098783392.

The previous prime is 521245250153. The next prime is 521245250293. The reversal of 521245250230 is 32052542125.

It is a super-2 number, since 2×521245250230² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521245250192 and 521245250201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174913024 + ... + 174916003.

It is an arithmetic number, because the mean of its divisors is an integer number (59033648475).

Almost surely, 2^521245250230 is an apocalyptic number.

521245250230 is a deficient number, since it is larger than the sum of its proper divisors (423293125370).

521245250230 is a wasteful number, since it uses less digits than its factorization.

521245250230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349829183.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 521245250230 its reverse (32052542125), we get a palindrome (553297792355).

The spelling of 521245250230 in words is "five hundred twenty-one billion, two hundred forty-five million, two hundred fifty thousand, two hundred thirty".