5251611289 has 8 divisors (see below), whose sum is σ = 5263681160. Its totient is φ = 5239555200.

The previous prime is 5251611271. The next prime is 5251611359. The reversal of 5251611289 is 9821161525.

It can be written as a sum of positive squares in 4 ways, for example, as 2526771289 + 2724840000 = 50267^2 + 52200^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5251611289 - 2⁷ = 5251611161 is a prime.

It is a super-2 number, since 2×5251611289² = 55158842261504483042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5251611269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1180309 + ... + 1184749.

It is an arithmetic number, because the mean of its divisors is an integer number (657960145).

Almost surely, 2^5251611289 is an apocalyptic number.

It is an amenable number.

5251611289 is a deficient number, since it is larger than the sum of its proper divisors (12069871).

5251611289 is a wasteful number, since it uses less digits than its factorization.

5251611289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6891.

The product of its digits is 43200, while the sum is 40.

The square root of 5251611289 is about 72468.0018283932. The cubic root of 5251611289 is about 1738.1911100814.

The spelling of 5251611289 in words is "five billion, two hundred fifty-one million, six hundred eleven thousand, two hundred eighty-nine".