1265316532825 has 48 divisors (see below), whose sum is σ = 1582579886976. Its totient is φ = 1003542912000.

The previous prime is 1265316532789. The next prime is 1265316532859. The reversal of 1265316532825 is 5282356135621.

It is not a de Polignac number, because 1265316532825 - 2³⁹ = 715560718937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1955666652 + ... + 1955667298.

It is an arithmetic number, because the mean of its divisors is an integer number (32970414312).

Almost surely, 2^{1265316532825} is an apocalyptic number.

It is an amenable number.

1265316532825 is a deficient number, since it is larger than the sum of its proper divisors (317263354151).

1265316532825 is a wasteful number, since it uses less digits than its factorization.

1265316532825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1949 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 49.

The spelling of 1265316532825 in words is "one trillion, two hundred sixty-five billion, three hundred sixteen million, five hundred thirty-two thousand, eight hundred twenty-five".