5231540403 has 12 divisors (see below), whose sum is σ = 7560644520. Its totient is φ = 3485858976.

The previous prime is 5231540333. The next prime is 5231540429. The reversal of 5231540403 is 3040451325.

5231540403 is a `hidden beast` number, since 52 + 31 + 540 + 40 + 3 = 666.

It is not a de Polignac number, because 5231540403 - 2⁸ = 5231540147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5231540473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134713 + ... + 169146.

It is an arithmetic number, because the mean of its divisors is an integer number (630053710).

Almost surely, 2^5231540403 is an apocalyptic number.

5231540403 is a deficient number, since it is larger than the sum of its proper divisors (2329104117).

5231540403 is a wasteful number, since it uses less digits than its factorization.

5231540403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305778 (or 305775 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 5231540403 is about 72329.3882388065. The cubic root of 5231540403 is about 1735.9739128140.

Adding to 5231540403 its reverse (3040451325), we get a palindrome (8271991728).

The spelling of 5231540403 in words is "five billion, two hundred thirty-one million, five hundred forty thousand, four hundred three".