1066263553 has 4 divisors (see below), whose sum is σ = 1079760640. Its totient is φ = 1052766468.

The previous prime is 1066263551. The next prime is 1066263559. The reversal of 1066263553 is 3553626601.

1066263553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 1066263553 - 2¹ = 1066263551 is a prime.

It is a super-2 number, since 2×1066263553² = 2273835928912367618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066263551) 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, 6748425 + ... + 6748582.

It is an arithmetic number, because the mean of its divisors is an integer number (269940160).

Almost surely, 2^1066263553 is an apocalyptic number.

It is an amenable number.

1066263553 is a deficient number, since it is larger than the sum of its proper divisors (13497087).

1066263553 is an equidigital number, since it uses as much as digits as its factorization.

1066263553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13497086.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 1066263553 is about 32653.6912614792. The cubic root of 1066263553 is about 1021.6171812216.

The spelling of 1066263553 in words is "one billion, sixty-six million, two hundred sixty-three thousand, five hundred fifty-three".