512725028 has 12 divisors (see below), whose sum is σ = 898286592. Its totient is φ = 256071720.

The previous prime is 512725019. The next prime is 512725043. The reversal of 512725028 is 820527215.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 512724985 and 512725003.

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 3 ways as a sum of consecutive naturals, for example, 68708 + ... + 75803.

It is an arithmetic number, because the mean of its divisors is an integer number (74857216).

Almost surely, 2^512725028 is an apocalyptic number.

It is an amenable number.

512725028 is a deficient number, since it is larger than the sum of its proper divisors (385561564).

512725028 is a wasteful number, since it uses less digits than its factorization.

512725028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145402 (or 145400 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 512725028 is about 22643.4323369934. The cubic root of 512725028 is about 800.3774406452.

The spelling of 512725028 in words is "five hundred twelve million, seven hundred twenty-five thousand, twenty-eight".