5231212898 has 18 divisors (see below), whose sum is σ = 7917254721. Its totient is φ = 2592336384.

The previous prime is 5231212891. The next prime is 5231212907. The reversal of 5231212898 is 8982121325.

It can be written as a sum of positive squares in 2 ways, for example, as 3261894769 + 1969318129 = 57113^2 + 44377^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=51143.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5231212891) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20354786 + ... + 20355042.

Almost surely, 2^5231212898 is an apocalyptic number.

5231212898 is a deficient number, since it is larger than the sum of its proper divisors (2686041823).

5231212898 is an frugal number, since it uses more digits than its factorization.

5231212898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 458 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 5231212898 is about 72327.1242204472. The cubic root of 5231212898 is about 1735.9376868998.

The spelling of 5231212898 in words is "five billion, two hundred thirty-one million, two hundred twelve thousand, eight hundred ninety-eight".