515225434 has 16 divisors (see below), whose sum is σ = 792942696. Its totient is φ = 250931200.

The previous prime is 515225429. The next prime is 515225453. The reversal of 515225434 is 434522515.

It can be written as a sum of positive squares in 4 ways, for example, as 510624409 + 4601025 = 22597^2 + 2145^2 .

It is a junction number, because it is equal to n+sod(n) for n = 515225396 and 515225405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50874 + ... + 60154.

Almost surely, 2^515225434 is an apocalyptic number.

515225434 is a deficient number, since it is larger than the sum of its proper divisors (277717262).

515225434 is a wasteful number, since it uses less digits than its factorization.

515225434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001.

The product of its digits is 24000, while the sum is 31.

The square root of 515225434 is about 22698.5777968577. The cubic root of 515225434 is about 801.6763981993.

Adding to 515225434 its reverse (434522515), we get a palindrome (949747949).

The spelling of 515225434 in words is "five hundred fifteen million, two hundred twenty-five thousand, four hundred thirty-four".