5551787243 has 2 divisors, whose sum is σ = 5551787244. Its totient is φ = 5551787242.

The previous prime is 5551787239. The next prime is 5551787273. The reversal of 5551787243 is 3427871555.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5551787243 - 2² = 5551787239 is a prime.

It is not a weakly prime, because it can be changed into another prime (5551787273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775893621 + 2775893622.

It is an arithmetic number, because the mean of its divisors is an integer number (2775893622).

Almost surely, 2^5551787243 is an apocalyptic number.

5551787243 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551787243 is an equidigital number, since it uses as much as digits as its factorization.

5551787243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176000, while the sum is 47.

The square root of 5551787243 is about 74510.3163528380. The cubic root of 5551787243 is about 1770.6970817677.

The spelling of 5551787243 in words is "five billion, five hundred fifty-one million, seven hundred eighty-seven thousand, two hundred forty-three".