5256394634 has 8 divisors (see below), whose sum is σ = 7885720548. Its totient is φ = 2627821120.

The previous prime is 5256394579. The next prime is 5256394657. The reversal of 5256394634 is 4364936525.

It can be written as a sum of positive squares in 2 ways, for example, as 4913589409 + 342805225 = 70097^2 + 18515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170297 + ... + 198780.

Almost surely, 2^5256394634 is an apocalyptic number.

5256394634 is a deficient number, since it is larger than the sum of its proper divisors (2629325914).

5256394634 is a wasteful number, since it uses less digits than its factorization.

5256394634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376200.

The product of its digits is 2332800, while the sum is 47.

The square root of 5256394634 is about 72500.9974690004. The cubic root of 5256394634 is about 1738.7186843336.

The spelling of 5256394634 in words is "five billion, two hundred fifty-six million, three hundred ninety-four thousand, six hundred thirty-four".