1066425507 has 40 divisors (see below), whose sum is σ = 1869877856. Its totient is φ = 592904448.

The previous prime is 1066425491. The next prime is 1066425511. The reversal of 1066425507 is 7055246601.

It is a happy number.

1066425507 is a `hidden beast` number, since 1 + 0 + 6 + 642 + 5 + 5 + 0 + 7 = 666.

It is not a de Polignac number, because 1066425507 - 2⁴ = 1066425491 is a prime.

It is a super-2 number, since 2×1066425507² = 2274526723960414098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066425587) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4438 + ... + 46395.

Almost surely, 2^1066425507 is an apocalyptic number.

1066425507 is a deficient number, since it is larger than the sum of its proper divisors (803452349).

1066425507 is an equidigital number, since it uses as much as digits as its factorization.

1066425507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50889 (or 50880 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1066425507 is about 32656.1710400959. The cubic root of 1066425507 is about 1021.6689028346.

The spelling of 1066425507 in words is "one billion, sixty-six million, four hundred twenty-five thousand, five hundred seven".