5531240009 has 2 divisors, whose sum is σ = 5531240010. Its totient is φ = 5531240008.

The previous prime is 5531239993. The next prime is 5531240023. The reversal of 5531240009 is 9000421355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5527476409 + 3763600 = 74347^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531240009 - 2⁴ = 5531239993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5531240809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765620004 + 2765620005.

It is an arithmetic number, because the mean of its divisors is an integer number (2765620005).

Almost surely, 2^5531240009 is an apocalyptic number.

It is an amenable number.

5531240009 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531240009 is an equidigital number, since it uses as much as digits as its factorization.

5531240009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 5531240009 is about 74372.3067344290. The cubic root of 5531240009 is about 1768.5099239655.

The spelling of 5531240009 in words is "five billion, five hundred thirty-one million, two hundred forty thousand, nine".