550009973 has 2 divisors, whose sum is σ = 550009974. Its totient is φ = 550009972.

The previous prime is 550009963. The next prime is 550009979. The reversal of 550009973 is 379900055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543029809 + 6980164 = 23303^2 + 2642^2 .

It is a cyclic number.

It is not a de Polignac number, because 550009973 - 2⁶ = 550009909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550009979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275004986 + 275004987.

It is an arithmetic number, because the mean of its divisors is an integer number (275004987).

Almost surely, 2^550009973 is an apocalyptic number.

It is an amenable number.

550009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

550009973 is an equidigital number, since it uses as much as digits as its factorization.

550009973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42525, while the sum is 38.

The square root of 550009973 is about 23452.2914232277. The cubic root of 550009973 is about 819.3262227471.

The spelling of 550009973 in words is "five hundred fifty million, nine thousand, nine hundred seventy-three".