512205425 has 12 divisors (see below), whose sum is σ = 638811420. Its totient is φ = 407392320.

The previous prime is 512205347. The next prime is 512205437. The reversal of 512205425 is 524502215.

It can be written as a sum of positive squares in 6 ways, for example, as 43264 + 512162161 = 208^2 + 22631^2 .

It is not a de Polignac number, because 512205425 - 2¹⁸ = 511943281 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512205394 and 512205403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54890 + ... + 63539.

It is an arithmetic number, because the mean of its divisors is an integer number (53234285).

Almost surely, 2^512205425 is an apocalyptic number.

It is an amenable number.

512205425 is a deficient number, since it is larger than the sum of its proper divisors (126605995).

512205425 is a wasteful number, since it uses less digits than its factorization.

512205425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118612 (or 118607 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 512205425 is about 22631.9558368251. The cubic root of 512205425 is about 800.1069778815.

The spelling of 512205425 in words is "five hundred twelve million, two hundred five thousand, four hundred twenty-five".