550422979 has 2 divisors, whose sum is σ = 550422980. Its totient is φ = 550422978.

The previous prime is 550422931. The next prime is 550422997. The reversal of 550422979 is 979224055.

Together with next prime (550422997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550422979 - 2²³ = 542034371 is a prime.

It is a super-2 number, since 2×550422979² = 605930911622468882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550422179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275211489 + 275211490.

It is an arithmetic number, because the mean of its divisors is an integer number (275211490).

Almost surely, 2^550422979 is an apocalyptic number.

550422979 is a deficient number, since it is larger than the sum of its proper divisors (1).

550422979 is an equidigital number, since it uses as much as digits as its factorization.

550422979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 550422979 is about 23461.0950085455. The cubic root of 550422979 is about 819.5312505339.

The spelling of 550422979 in words is "five hundred fifty million, four hundred twenty-two thousand, nine hundred seventy-nine".