16453553 has 2 divisors, whose sum is σ = 16453554. Its totient is φ = 16453552.

The previous prime is 16453537. The next prime is 16453559. The reversal of 16453553 is 35535461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15547249 + 906304 = 3943^2 + 952^2 .

It is a cyclic number.

It is not a de Polignac number, because 16453553 - 2⁴ = 16453537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16453559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226776 + 8226777.

It is an arithmetic number, because the mean of its divisors is an integer number (8226777).

Almost surely, 2^16453553 is an apocalyptic number.

It is an amenable number.

16453553 is a deficient number, since it is larger than the sum of its proper divisors (1).

16453553 is an equidigital number, since it uses as much as digits as its factorization.

16453553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27000, while the sum is 32.

The square root of 16453553 is about 4056.2979427059. The cubic root of 16453553 is about 254.3430636216.

The spelling of 16453553 in words is "sixteen million, four hundred fifty-three thousand, five hundred fifty-three".