1006425561 has 8 divisors (see below), whose sum is σ = 1342240480. Its totient is φ = 670780512.

The previous prime is 1006425527. The next prime is 1006425577. The reversal of 1006425561 is 1655246001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1006425561 - 2¹¹ = 1006423513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1006425061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27931 + ... + 52848.

It is an arithmetic number, because the mean of its divisors is an integer number (167780060).

Almost surely, 2^1006425561 is an apocalyptic number.

It is an amenable number.

1006425561 is a deficient number, since it is larger than the sum of its proper divisors (335814919).

1006425561 is an equidigital number, since it uses as much as digits as its factorization.

1006425561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84935.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1006425561 is about 31724.2109594549. The cubic root of 1006425561 is about 1002.1372824361.

The spelling of 1006425561 in words is "one billion, six million, four hundred twenty-five thousand, five hundred sixty-one".