550640983 has 2 divisors, whose sum is σ = 550640984. Its totient is φ = 550640982.

The previous prime is 550640969. The next prime is 550641017. The reversal of 550640983 is 389046055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550640983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556640983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275320491 + 275320492.

It is an arithmetic number, because the mean of its divisors is an integer number (275320492).

Almost surely, 2^550640983 is an apocalyptic number.

550640983 is a deficient number, since it is larger than the sum of its proper divisors (1).

550640983 is an equidigital number, since it uses as much as digits as its factorization.

550640983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 550640983 is about 23465.7406233002. The cubic root of 550640983 is about 819.6394324930.

The spelling of 550640983 in words is "five hundred fifty million, six hundred forty thousand, nine hundred eighty-three".