1425626005 has 4 divisors (see below), whose sum is σ = 1710751212. Its totient is φ = 1140500800.

The previous prime is 1425625961. The next prime is 1425626017. The reversal of 1425626005 is 5006265241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 215003569 + 1210622436 = 14663^2 + 34794^2 .

It is not a de Polignac number, because 1425626005 - 2¹¹ = 1425623957 is a prime.

It is a super-2 number, since 2×1425626005² = 4064819012264520050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142562596 + ... + 142562605.

It is an arithmetic number, because the mean of its divisors is an integer number (427687803).

Almost surely, 2^1425626005 is an apocalyptic number.

It is an amenable number.

1425626005 is a deficient number, since it is larger than the sum of its proper divisors (285125207).

1425626005 is an equidigital number, since it uses as much as digits as its factorization.

1425626005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285125206.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 1425626005 is about 37757.4629047027. The cubic root of 1425626005 is about 1125.4733165557.

The spelling of 1425626005 in words is "one billion, four hundred twenty-five million, six hundred twenty-six thousand, five".