550447951 has 2 divisors, whose sum is σ = 550447952. Its totient is φ = 550447950.

The previous prime is 550447921. The next prime is 550447979. The reversal of 550447951 is 159744055.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550447951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550447921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275223975 + 275223976.

It is an arithmetic number, because the mean of its divisors is an integer number (275223976).

Almost surely, 2^550447951 is an apocalyptic number.

550447951 is a deficient number, since it is larger than the sum of its proper divisors (1).

550447951 is an equidigital number, since it uses as much as digits as its factorization.

550447951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 550447951 is about 23461.6272027326. The cubic root of 550447951 is about 819.5436440480.

The spelling of 550447951 in words is "five hundred fifty million, four hundred forty-seven thousand, nine hundred fifty-one".