1066425523 has 4 divisors (see below), whose sum is σ = 1067189200. Its totient is φ = 1065661848.

The previous prime is 1066425511. The next prime is 1066425541. The reversal of 1066425523 is 3255246601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3255246601 = 127 ⋅25631863.

It is a cyclic number.

It is not a de Polignac number, because 1066425523 - 2⁵ = 1066425491 is a prime.

It is a super-2 number, since 2×1066425523² = 2274526792211647058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066425923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379740 + ... + 382537.

It is an arithmetic number, because the mean of its divisors is an integer number (266797300).

Almost surely, 2^1066425523 is an apocalyptic number.

1066425523 is a deficient number, since it is larger than the sum of its proper divisors (763677).

1066425523 is an equidigital number, since it uses as much as digits as its factorization.

1066425523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763676.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1066425523 is about 32656.1712850726. The cubic root of 1066425523 is about 1021.6689079441.

The spelling of 1066425523 in words is "one billion, sixty-six million, four hundred twenty-five thousand, five hundred twenty-three".