1330536553 has 4 divisors (see below), whose sum is σ = 1353088080. Its totient is φ = 1307985028.

The previous prime is 1330536511. The next prime is 1330536589. The reversal of 1330536553 is 3556350331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3556350331 = 281 ⋅12656051.

It is a cyclic number.

It is not a de Polignac number, because 1330536553 - 2¹³ = 1330528361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330533553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11275675 + ... + 11275792.

It is an arithmetic number, because the mean of its divisors is an integer number (338272020).

Almost surely, 2^1330536553 is an apocalyptic number.

It is an amenable number.

1330536553 is a deficient number, since it is larger than the sum of its proper divisors (22551527).

1330536553 is an equidigital number, since it uses as much as digits as its factorization.

1330536553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22551526.

The product of its (nonzero) digits is 60750, while the sum is 34.

The square root of 1330536553 is about 36476.5205714580. The cubic root of 1330536553 is about 1099.8723138291.

Adding to 1330536553 its reverse (3556350331), we get a palindrome (4886886884).

The spelling of 1330536553 in words is "one billion, three hundred thirty million, five hundred thirty-six thousand, five hundred fifty-three".