1006660425 has 12 divisors (see below), whose sum is σ = 1664345360. Its totient is φ = 536885520.

The previous prime is 1006660397. The next prime is 1006660477. The reversal of 1006660425 is 5240666001.

It is not a de Polignac number, because 1006660425 - 2²² = 1002466121 is a prime.

It is a super-2 number, since 2×1006660425² = 2026730422522361250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1006660392 and 1006660401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6710995 + ... + 6711144.

Almost surely, 2^1006660425 is an apocalyptic number.

1006660425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1006660425 is a deficient number, since it is larger than the sum of its proper divisors (657684935).

1006660425 is a wasteful number, since it uses less digits than its factorization.

1006660425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422152 (or 13422147 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1006660425 is about 31727.9123958700. The cubic root of 1006660425 is about 1002.2152307956.

The spelling of 1006660425 in words is "one billion, six million, six hundred sixty thousand, four hundred twenty-five".