1016553389 has 2 divisors, whose sum is σ = 1016553390. Its totient is φ = 1016553388.

The previous prime is 1016553383. The next prime is 1016553401. The reversal of 1016553389 is 9833556101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1002988900 + 13564489 = 31670^2 + 3683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016553389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1016553383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508276694 + 508276695.

It is an arithmetic number, because the mean of its divisors is an integer number (508276695).

Almost surely, 2^1016553389 is an apocalyptic number.

It is an amenable number.

1016553389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016553389 is an equidigital number, since it uses as much as digits as its factorization.

1016553389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 1016553389 is about 31883.4343978186. The cubic root of 1016553389 is about 1005.4876271962.

The spelling of 1016553389 in words is "one billion, sixteen million, five hundred fifty-three thousand, three hundred eighty-nine".