1275251275000 has 48 divisors (see below), whose sum is σ = 2988678946680. Its totient is φ = 510100500000.

The previous prime is 1275251274989. The next prime is 1275251275003. The reversal of 1275251275000 is 5721525721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275251275003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25480026 + ... + 25530025.

Almost surely, 2^{1275251275000} is an apocalyptic number.

1275251275000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275251275000 is an abundant number, since it is smaller than the sum of its proper divisors (1713427671680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1275251275000 is an frugal number, since it uses more digits than its factorization.

1275251275000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51010082 (or 51010058 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 37.

The spelling of 1275251275000 in words is "one trillion, two hundred seventy-five billion, two hundred fifty-one million, two hundred seventy-five thousand".