10554989 has 2 divisors, whose sum is σ = 10554990. Its totient is φ = 10554988.

The previous prime is 10554949. The next prime is 10555007. The reversal of 10554989 is 98945501.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10530025 + 24964 = 3245^2 + 158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10554989 is a prime.

It is a super-2 number, since 2×10554989² = 222815585580242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10554919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5277494 + 5277495.

It is an arithmetic number, because the mean of its divisors is an integer number (5277495).

Almost surely, 2^10554989 is an apocalyptic number.

It is an amenable number.

10554989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10554989 is an equidigital number, since it uses as much as digits as its factorization.

10554989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 10554989 is about 3248.8442560394. The cubic root of 10554989 is about 219.3575541249.

The spelling of 10554989 in words is "ten million, five hundred fifty-four thousand, nine hundred eighty-nine".