512100425 has 6 divisors (see below), whose sum is σ = 635004558. Its totient is φ = 409680320.

The previous prime is 512100409. The next prime is 512100427. The reversal of 512100425 is 524001215.

It can be written as a sum of positive squares in 3 ways, for example, as 2650384 + 509450041 = 1628^2 + 22571^2 .

It is not a de Polignac number, because 512100425 - 2⁴ = 512100409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512100397 and 512100406.

It is not an unprimeable number, because it can be changed into a prime (512100427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10241984 + ... + 10242033.

It is an arithmetic number, because the mean of its divisors is an integer number (105834093).

Almost surely, 2^512100425 is an apocalyptic number.

It is an amenable number.

512100425 is a deficient number, since it is larger than the sum of its proper divisors (122904133).

512100425 is a wasteful number, since it uses less digits than its factorization.

512100425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20484027 (or 20484022 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 512100425 is about 22629.6359891183. The cubic root of 512100425 is about 800.0523012681.

The spelling of 512100425 in words is "five hundred twelve million, one hundred thousand, four hundred twenty-five".