1425309953 has 4 divisors (see below), whose sum is σ = 1427072580. Its totient is φ = 1423547328.

The previous prime is 1425309943. The next prime is 1425309959. The reversal of 1425309953 is 3599035241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3599035241 = 31 ⋅116097911.

It can be written as a sum of positive squares in 2 ways, for example, as 716525824 + 708784129 = 26768^2 + 26623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425309953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425309953.

It is not an unprimeable number, because it can be changed into a prime (1425309959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880100 + ... + 881717.

It is an arithmetic number, because the mean of its divisors is an integer number (356768145).

Almost surely, 2^1425309953 is an apocalyptic number.

It is an amenable number.

1425309953 is a deficient number, since it is larger than the sum of its proper divisors (1762627).

1425309953 is an equidigital number, since it uses as much as digits as its factorization.

1425309953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762626.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 1425309953 is about 37753.2773809109. The cubic root of 1425309953 is about 1125.3901403743.

The spelling of 1425309953 in words is "one billion, four hundred twenty-five million, three hundred nine thousand, nine hundred fifty-three".