521425032112 has 10 divisors (see below), whose sum is σ = 1010260999748. Its totient is φ = 260712516048.

The previous prime is 521425032103. The next prime is 521425032157. The reversal of 521425032112 is 211230524125.

It is a happy number.

It is a super-2 number, since 2×521425032112² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16294532238 + ... + 16294532269.

Almost surely, 2^521425032112 is an apocalyptic number.

It is an amenable number.

521425032112 is a deficient number, since it is larger than the sum of its proper divisors (488835967636).

521425032112 is a wasteful number, since it uses less digits than its factorization.

521425032112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32589064515 (or 32589064509 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 521425032112 its reverse (211230524125), we get a palindrome (732655556237).

The spelling of 521425032112 in words is "five hundred twenty-one billion, four hundred twenty-five million, thirty-two thousand, one hundred twelve".