512125450 has 24 divisors (see below), whose sum is σ = 954855180. Its totient is φ = 204355200.

The previous prime is 512125447. The next prime is 512125457. The reversal of 512125450 is 54521215.

It can be written as a sum of positive squares in 6 ways, for example, as 97555129 + 414570321 = 9877^2 + 20361^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (512125457) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8886 + ... + 33214.

Almost surely, 2^512125450 is an apocalyptic number.

512125450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

512125450 is a deficient number, since it is larger than the sum of its proper divisors (442729730).

512125450 is a wasteful number, since it uses less digits than its factorization.

512125450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24762 (or 24757 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 512125450 is about 22630.1889077400. The cubic root of 512125450 is about 800.0653332060.

Adding to 512125450 its reverse (54521215), we get a palindrome (566646665).

The spelling of 512125450 in words is "five hundred twelve million, one hundred twenty-five thousand, four hundred fifty".