1265375152625 has 16 divisors (see below), whose sum is σ = 1587204405072. Its totient is φ = 1007161523200.

The previous prime is 1265375152607. The next prime is 1265375152627. The reversal of 1265375152625 is 5262515735621.

It can be written as a sum of positive squares in 8 ways, for example, as 468404728801 + 796970423824 = 684401^2 + 892732^2 .

It is not a de Polignac number, because 1265375152625 - 2⁸ = 1265375152369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1265375152627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25668272 + ... + 25717521.

It is an arithmetic number, because the mean of its divisors is an integer number (99200275317).

Almost surely, 2^{1265375152625} is an apocalyptic number.

It is an amenable number.

1265375152625 is a deficient number, since it is larger than the sum of its proper divisors (321829252447).

1265375152625 is an equidigital number, since it uses as much as digits as its factorization.

1265375152625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51386005 (or 51385995 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 50.

The spelling of 1265375152625 in words is "one trillion, two hundred sixty-five billion, three hundred seventy-five million, one hundred fifty-two thousand, six hundred twenty-five".