5551405943 has 2 divisors, whose sum is σ = 5551405944. Its totient is φ = 5551405942.

The previous prime is 5551405927. The next prime is 5551405949. The reversal of 5551405943 is 3495041555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5551405943 - 2⁴ = 5551405927 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5551405943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5551405949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775702971 + 2775702972.

It is an arithmetic number, because the mean of its divisors is an integer number (2775702972).

Almost surely, 2^5551405943 is an apocalyptic number.

5551405943 is a deficient number, since it is larger than the sum of its proper divisors (1).

5551405943 is an equidigital number, since it uses as much as digits as its factorization.

5551405943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 5551405943 is about 74507.7576028161. The cubic root of 5551405943 is about 1770.6565433354.

The spelling of 5551405943 in words is "five billion, five hundred fifty-one million, four hundred five thousand, nine hundred forty-three".