9780553 has 2 divisors, whose sum is σ = 9780554. Its totient is φ = 9780552.

The previous prime is 9780539. The next prime is 9780577. The reversal of 9780553 is 3550879.

9780553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7551504 + 2229049 = 2748^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 9780553 - 2⁵ = 9780521 is a prime.

It is not a weakly prime, because it can be changed into another prime (9780523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4890276 + 4890277.

It is an arithmetic number, because the mean of its divisors is an integer number (4890277).

Almost surely, 2^9780553 is an apocalyptic number.

It is an amenable number.

9780553 is a deficient number, since it is larger than the sum of its proper divisors (1).

9780553 is an equidigital number, since it uses as much as digits as its factorization.

9780553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 9780553 is about 3127.3875679231. The cubic root of 9780553 is about 213.8558510418.

The spelling of 9780553 in words is "nine million, seven hundred eighty thousand, five hundred fifty-three".