5501989 has 2 divisors, whose sum is σ = 5501990. Its totient is φ = 5501988.

The previous prime is 5501981. The next prime is 5502041. The reversal of 5501989 is 9891055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4133089 + 1368900 = 2033^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 5501989 - 2³ = 5501981 is a prime.

It is a super-2 number, since 2×5501989² = 60543765912242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5501981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750994 + 2750995.

It is an arithmetic number, because the mean of its divisors is an integer number (2750995).

Almost surely, 2^5501989 is an apocalyptic number.

It is an amenable number.

5501989 is a deficient number, since it is larger than the sum of its proper divisors (1).

5501989 is an equidigital number, since it uses as much as digits as its factorization.

5501989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 5501989 is about 2345.6318978049. The cubic root of 5501989 is about 176.5386925740.

The spelling of 5501989 in words is "five million, five hundred one thousand, nine hundred eighty-nine".