1425559689 has 8 divisors (see below), whose sum is σ = 2111940320. Its totient is φ = 950373108.

The previous prime is 1425559687. The next prime is 1425559727. The reversal of 1425559689 is 9869555241.

1425559689 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 559 + 6 + 89 = 666.

It is not a de Polignac number, because 1425559689 - 2¹ = 1425559687 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 (1425559687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26399227 + ... + 26399280.

It is an arithmetic number, because the mean of its divisors is an integer number (263992540).

Almost surely, 2^1425559689 is an apocalyptic number.

It is an amenable number.

1425559689 is a deficient number, since it is larger than the sum of its proper divisors (686380631).

1425559689 is an equidigital number, since it uses as much as digits as its factorization.

1425559689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52798516 (or 52798510 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 54.

The square root of 1425559689 is about 37756.5847104846. The cubic root of 1425559689 is about 1125.4558650302.

The spelling of 1425559689 in words is "one billion, four hundred twenty-five million, five hundred fifty-nine thousand, six hundred eighty-nine".