5431051540 has 24 divisors (see below), whose sum is σ = 12076103592. Its totient is φ = 2044631040.

The previous prime is 5431051529. The next prime is 5431051543. The reversal of 5431051540 is 451501345.

It can be written as a sum of positive squares in 4 ways, for example, as 2566232964 + 2864818576 = 50658^2 + 53524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5431051499 and 5431051508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431051543) 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, 7986501 + ... + 7987180.

It is an arithmetic number, because the mean of its divisors is an integer number (503170983).

Almost surely, 2^5431051540 is an apocalyptic number.

It is an amenable number.

5431051540 is an abundant number, since it is smaller than the sum of its proper divisors (6645052052).

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

5431051540 is a wasteful number, since it uses less digits than its factorization.

5431051540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15973707 (or 15973705 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 5431051540 is about 73695.6683937394. The cubic root of 5431051540 is about 1757.7670049549.

Adding to 5431051540 its reverse (451501345), we get a palindrome (5882552885).

The spelling of 5431051540 in words is "five billion, four hundred thirty-one million, fifty-one thousand, five hundred forty".