1275803025 has 48 divisors (see below), whose sum is σ = 2413845504. Its totient is φ = 582454080.

The previous prime is 1275802993. The next prime is 1275803041. The reversal of 1275803025 is 5203085721.

It is not a de Polignac number, because 1275803025 - 2⁵ = 1275802993 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 641082 + ... + 643068.

It is an arithmetic number, because the mean of its divisors is an integer number (50288448).

Almost surely, 2^1275803025 is an apocalyptic number.

1275803025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275803025 is a deficient number, since it is larger than the sum of its proper divisors (1138042479).

1275803025 is a wasteful number, since it uses less digits than its factorization.

1275803025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3230 (or 3225 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1275803025 is about 35718.3849718881. The cubic root of 1275803025 is about 1084.5790448663.

Adding to 1275803025 its reverse (5203085721), we get a palindrome (6478888746).

The spelling of 1275803025 in words is "one billion, two hundred seventy-five million, eight hundred three thousand, twenty-five".