1275250250125 has 8 divisors (see below), whose sum is σ = 1591512312312. Its totient is φ = 1020200200000.

The previous prime is 1275250250119. The next prime is 1275250250137. The reversal of 1275250250125 is 5210520525721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36476798121 + 1238773452004 = 190989^2 + 1113002^2 .

It is not a de Polignac number, because 1275250250125 - 2²⁷ = 1275116032397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5101000876 + ... + 5101001125.

It is an arithmetic number, because the mean of its divisors is an integer number (198939039039).

Almost surely, 2^{1275250250125} is an apocalyptic number.

It is an amenable number.

1275250250125 is a deficient number, since it is larger than the sum of its proper divisors (316262062187).

1275250250125 is an equidigital number, since it uses as much as digits as its factorization.

1275250250125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10202002016 (or 10202002006 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 37.

Adding to 1275250250125 its reverse (5210520525721), we get a palindrome (6485770775846).

The spelling of 1275250250125 in words is "one trillion, two hundred seventy-five billion, two hundred fifty million, two hundred fifty thousand, one hundred twenty-five".