5252126009 has 4 divisors (see below), whose sum is σ = 5656135716. Its totient is φ = 4848116304.

The previous prime is 5252125993. The next prime is 5252126017. The reversal of 5252126009 is 9006212525.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3567433984 + 1684692025 = 59728^2 + 41045^2 .

It is a cyclic number.

It is not a de Polignac number, because 5252126009 - 2⁴ = 5252125993 is a prime.

It is a super-2 number, since 2×5252126009² = 55169655228828536162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5252126059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202004834 + ... + 202004859.

It is an arithmetic number, because the mean of its divisors is an integer number (1414033929).

Almost surely, 2^5252126009 is an apocalyptic number.

It is an amenable number.

5252126009 is a deficient number, since it is larger than the sum of its proper divisors (404009707).

5252126009 is a wasteful number, since it uses less digits than its factorization.

5252126009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404009706.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 5252126009 is about 72471.5531018896. The cubic root of 5252126009 is about 1738.2478959864.

The spelling of 5252126009 in words is "five billion, two hundred fifty-two million, one hundred twenty-six thousand, nine".