5231354540 has 12 divisors (see below), whose sum is σ = 10985844576. Its totient is φ = 2092541808.

The previous prime is 5231354539. The next prime is 5231354561. The reversal of 5231354540 is 454531325.

It is a happy number.

It is a super-2 number, since 2×5231354540² = 54734140646357223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5231354497 and 5231354506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130783844 + ... + 130783883.

It is an arithmetic number, because the mean of its divisors is an integer number (915487048).

Almost surely, 2^5231354540 is an apocalyptic number.

It is an amenable number.

5231354540 is an abundant number, since it is smaller than the sum of its proper divisors (5754490036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5231354540 is a wasteful number, since it uses less digits than its factorization.

5231354540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261567736 (or 261567734 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 5231354540 is about 72328.1033900378. The cubic root of 5231354540 is about 1735.9533543605.

Adding to 5231354540 its reverse (454531325), we get a palindrome (5685885865).

The spelling of 5231354540 in words is "five billion, two hundred thirty-one million, three hundred fifty-four thousand, five hundred forty".