1425604066 has 4 divisors (see below), whose sum is σ = 2138406102. Its totient is φ = 712802032.

The previous prime is 1425604051. The next prime is 1425604073. The reversal of 1425604066 is 6604065241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 888338025 + 537266041 = 29805^2 + 23179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356401015 + ... + 356401018.

Almost surely, 2^1425604066 is an apocalyptic number.

1425604066 is a deficient number, since it is larger than the sum of its proper divisors (712802036).

1425604066 is an equidigital number, since it uses as much as digits as its factorization.

1425604066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712802035.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1425604066 is about 37757.1723782383. The cubic root of 1425604066 is about 1125.4675432123.

The spelling of 1425604066 in words is "one billion, four hundred twenty-five million, six hundred four thousand, sixty-six".