550150091 has 2 divisors, whose sum is σ = 550150092. Its totient is φ = 550150090.

The previous prime is 550150063. The next prime is 550150093. The reversal of 550150091 is 190051055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550150091 - 2¹⁴ = 550133707 is a prime.

It is a Sophie Germain prime.

Together with 550150093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550150091.

It is not a weakly prime, because it can be changed into another prime (550150093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275075045 + 275075046.

It is an arithmetic number, because the mean of its divisors is an integer number (275075046).

Almost surely, 2^550150091 is an apocalyptic number.

550150091 is a deficient number, since it is larger than the sum of its proper divisors (1).

550150091 is an equidigital number, since it uses as much as digits as its factorization.

550150091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 550150091 is about 23455.2785317080. The cubic root of 550150091 is about 819.3957927609.

The spelling of 550150091 in words is "five hundred fifty million, one hundred fifty thousand, ninety-one".