2153545553 has 2 divisors, whose sum is σ = 2153545554. Its totient is φ = 2153545552.

The previous prime is 2153545507. The next prime is 2153545571. The reversal of 2153545553 is 3555453512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1215777424 + 937768129 = 34868^2 + 30623^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153545553 - 2¹⁰ = 2153544529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2153545573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076772776 + 1076772777.

It is an arithmetic number, because the mean of its divisors is an integer number (1076772777).

Almost surely, 2^2153545553 is an apocalyptic number.

It is an amenable number.

2153545553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153545553 is an equidigital number, since it uses as much as digits as its factorization.

2153545553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225000, while the sum is 38.

The square root of 2153545553 is about 46406.3094093896. The cubic root of 2153545553 is about 1291.3719660181.

The spelling of 2153545553 in words is "two billion, one hundred fifty-three million, five hundred forty-five thousand, five hundred fifty-three".