5553431231 has 2 divisors, whose sum is σ = 5553431232. Its totient is φ = 5553431230.

The previous prime is 5553431201. The next prime is 5553431243. The reversal of 5553431231 is 1321343555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5553431231 is a prime.

It is a super-2 number, since 2×5553431231² = 61681196874892350722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5553431201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2776715615 + 2776715616.

It is an arithmetic number, because the mean of its divisors is an integer number (2776715616).

Almost surely, 2^5553431231 is an apocalyptic number.

5553431231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5553431231 is an equidigital number, since it uses as much as digits as its factorization.

5553431231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 32.

The square root of 5553431231 is about 74521.3474851334. The cubic root of 5553431231 is about 1770.8718433559.

Adding to 5553431231 its reverse (1321343555), we get a palindrome (6874774786).

The spelling of 5553431231 in words is "five billion, five hundred fifty-three million, four hundred thirty-one thousand, two hundred thirty-one".