554928989 has 2 divisors, whose sum is σ = 554928990. Its totient is φ = 554928988.

The previous prime is 554928961. The next prime is 554929003. The reversal of 554928989 is 989829455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 533148100 + 21780889 = 23090^2 + 4667^2 .

It is a cyclic number.

It is not a de Polignac number, because 554928989 - 2¹⁶ = 554863453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554228989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277464494 + 277464495.

It is an arithmetic number, because the mean of its divisors is an integer number (277464495).

Almost surely, 2^554928989 is an apocalyptic number.

It is an amenable number.

554928989 is a deficient number, since it is larger than the sum of its proper divisors (1).

554928989 is an equidigital number, since it uses as much as digits as its factorization.

554928989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 59.

The square root of 554928989 is about 23556.9308060282. The cubic root of 554928989 is about 821.7615259858.

The spelling of 554928989 in words is "five hundred fifty-four million, nine hundred twenty-eight thousand, nine hundred eighty-nine".