1262505425 has 12 divisors (see below), whose sum is σ = 1657595916. Its totient is φ = 950592000.

The previous prime is 1262505403. The next prime is 1262505449. The reversal of 1262505425 is 5245052621.

It can be written as a sum of positive squares in 6 ways, for example, as 9628609 + 1252876816 = 3103^2 + 35396^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1262505425 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1262505391 and 1262505400.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1484876 + ... + 1485725.

It is an arithmetic number, because the mean of its divisors is an integer number (138132993).

Almost surely, 2^1262505425 is an apocalyptic number.

It is an amenable number.

1262505425 is a deficient number, since it is larger than the sum of its proper divisors (395090491).

1262505425 is a wasteful number, since it uses less digits than its factorization.

1262505425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970628 (or 2970623 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1262505425 is about 35531.7523491313. The cubic root of 1262505425 is about 1080.7977145414.

The spelling of 1262505425 in words is "one billion, two hundred sixty-two million, five hundred five thousand, four hundred twenty-five".