521150012 has 24 divisors (see below), whose sum is σ = 960800400. Its totient is φ = 246658176.

The previous prime is 521149991. The next prime is 521150029. The reversal of 521150012 is 210051125.

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, 134048 + ... + 137880.

It is an arithmetic number, because the mean of its divisors is an integer number (40033350).

Almost surely, 2^521150012 is an apocalyptic number.

It is an amenable number.

521150012 is a deficient number, since it is larger than the sum of its proper divisors (439650388).

521150012 is a wasteful number, since it uses less digits than its factorization.

521150012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5643 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 521150012 is about 22828.7102570426. The cubic root of 521150012 is about 804.7375207416.

The spelling of 521150012 in words is "five hundred twenty-one million, one hundred fifty thousand, twelve".