5540431571 has 2 divisors, whose sum is σ = 5540431572. Its totient is φ = 5540431570.

The previous prime is 5540431543. The next prime is 5540431573. The reversal of 5540431571 is 1751340455.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5540431571 is a prime.

Together with 5540431573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5540431573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770215785 + 2770215786.

It is an arithmetic number, because the mean of its divisors is an integer number (2770215786).

Almost surely, 2^5540431571 is an apocalyptic number.

5540431571 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540431571 is an equidigital number, since it uses as much as digits as its factorization.

5540431571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 5540431571 is about 74434.0753351582. The cubic root of 5540431571 is about 1769.4889915132.

The spelling of 5540431571 in words is "five billion, five hundred forty million, four hundred thirty-one thousand, five hundred seventy-one".