550141997 has 2 divisors, whose sum is σ = 550141998. Its totient is φ = 550141996.

The previous prime is 550141951. The next prime is 550142039. The reversal of 550141997 is 799141055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 532409476 + 17732521 = 23074^2 + 4211^2 .

It is a cyclic number.

It is not a de Polignac number, because 550141997 - 2¹⁸ = 549879853 is a prime.

It is equal to p_28852493 and since 550141997 and 28852493 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550141927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275070998 + 275070999.

It is an arithmetic number, because the mean of its divisors is an integer number (275070999).

Almost surely, 2^550141997 is an apocalyptic number.

It is an amenable number.

550141997 is a deficient number, since it is larger than the sum of its proper divisors (1).

550141997 is an equidigital number, since it uses as much as digits as its factorization.

550141997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 41.

The square root of 550141997 is about 23455.1059899545. The cubic root of 550141997 is about 819.3917743290.

The spelling of 550141997 in words is "five hundred fifty million, one hundred forty-one thousand, nine hundred ninety-seven".