550111379 has 2 divisors, whose sum is σ = 550111380. Its totient is φ = 550111378.

The previous prime is 550111363. The next prime is 550111439. The reversal of 550111379 is 973111055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550111379 - 2⁴ = 550111363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550111349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275055689 + 275055690.

It is an arithmetic number, because the mean of its divisors is an integer number (275055690).

Almost surely, 2^550111379 is an apocalyptic number.

550111379 is a deficient number, since it is larger than the sum of its proper divisors (1).

550111379 is an equidigital number, since it uses as much as digits as its factorization.

550111379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 32.

The square root of 550111379 is about 23454.4532871692. The cubic root of 550111379 is about 819.3765730398.

The spelling of 550111379 in words is "five hundred fifty million, one hundred eleven thousand, three hundred seventy-nine".