512720265 has 16 divisors (see below), whose sum is σ = 826257600. Its totient is φ = 271482432.

The previous prime is 512720239. The next prime is 512720279. The reversal of 512720265 is 562027215.

It is not a de Polignac number, because 512720265 - 2⁸ = 512720009 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120870 + ... + 125039.

It is an arithmetic number, because the mean of its divisors is an integer number (51641100).

Almost surely, 2^512720265 is an apocalyptic number.

It is an amenable number.

512720265 is a deficient number, since it is larger than the sum of its proper divisors (313537335).

512720265 is a wasteful number, since it uses less digits than its factorization.

512720265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246056.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 512720265 is about 22643.3271627648. The cubic root of 512720265 is about 800.3749622475.

The spelling of 512720265 in words is "five hundred twelve million, seven hundred twenty thousand, two hundred sixty-five".