5251533231 has 16 divisors (see below), whose sum is σ = 8121776384. Its totient is φ = 2956086144.

The previous prime is 5251533211. The next prime is 5251533233. The reversal of 5251533231 is 1323351525.

It is not a de Polignac number, because 5251533231 - 2¹³ = 5251525039 is a prime.

It is a super-2 number, since 2×5251533231² = 55157202552594598722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251533233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1864810 + ... + 1867623.

It is an arithmetic number, because the mean of its divisors is an integer number (507611024).

Almost surely, 2^5251533231 is an apocalyptic number.

5251533231 is a deficient number, since it is larger than the sum of its proper divisors (2870243153).

5251533231 is a wasteful number, since it uses less digits than its factorization.

5251533231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3732510.

The product of its digits is 13500, while the sum is 30.

The square root of 5251533231 is about 72467.4632576579. The cubic root of 5251533231 is about 1738.1824980963.

Adding to 5251533231 its reverse (1323351525), we get a palindrome (6574884756).

The spelling of 5251533231 in words is "five billion, two hundred fifty-one million, five hundred thirty-three thousand, two hundred thirty-one".