5259123634 has 4 divisors (see below), whose sum is σ = 7888685454. Its totient is φ = 2629561816.

The previous prime is 5259123629. The next prime is 5259123647. The reversal of 5259123634 is 4363219525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5255525025 + 3598609 = 72495^2 + 1897^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314780907 + ... + 1314780910.

Almost surely, 2^5259123634 is an apocalyptic number.

5259123634 is a deficient number, since it is larger than the sum of its proper divisors (2629561820).

5259123634 is a wasteful number, since it uses less digits than its factorization.

5259123634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629561819.

The product of its digits is 194400, while the sum is 40.

The square root of 5259123634 is about 72519.8154575699. The cubic root of 5259123634 is about 1739.0195332803.

The spelling of 5259123634 in words is "five billion, two hundred fifty-nine million, one hundred twenty-three thousand, six hundred thirty-four".