5540512709 has 2 divisors, whose sum is σ = 5540512710. Its totient is φ = 5540512708.

The previous prime is 5540512699. The next prime is 5540512717. The reversal of 5540512709 is 9072150455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3646348225 + 1894164484 = 60385^2 + 43522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5540512709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5540512729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770256354 + 2770256355.

It is an arithmetic number, because the mean of its divisors is an integer number (2770256355).

Almost surely, 2^5540512709 is an apocalyptic number.

It is an amenable number.

5540512709 is a deficient number, since it is larger than the sum of its proper divisors (1).

5540512709 is an equidigital number, since it uses as much as digits as its factorization.

5540512709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 5540512709 is about 74434.6203657948. The cubic root of 5540512709 is about 1769.4976293539.

The spelling of 5540512709 in words is "five billion, five hundred forty million, five hundred twelve thousand, seven hundred nine".