1275534825 has 24 divisors (see below), whose sum is σ = 2110430400. Its totient is φ = 679786560.

The previous prime is 1275534779. The next prime is 1275534829. The reversal of 1275534825 is 5284355721.

It is not a de Polignac number, because 1275534825 - 2⁶ = 1275534761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1275534829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111471 + ... + 122379.

It is an arithmetic number, because the mean of its divisors is an integer number (87934600).

Almost surely, 2^1275534825 is an apocalyptic number.

1275534825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1275534825 is a deficient number, since it is larger than the sum of its proper divisors (834895575).

1275534825 is a wasteful number, since it uses less digits than its factorization.

1275534825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481 (or 12476 counting only the distinct ones).

The product of its digits is 336000, while the sum is 42.

The square root of 1275534825 is about 35714.6304054795. The cubic root of 1275534825 is about 1084.5030392761.

The spelling of 1275534825 in words is "one billion, two hundred seventy-five million, five hundred thirty-four thousand, eight hundred twenty-five".