1266325325 has 24 divisors (see below), whose sum is σ = 1664768448. Its totient is φ = 952231680.

The previous prime is 1266325309. The next prime is 1266325327. The reversal of 1266325325 is 5235236621.

It is not a de Polignac number, because 1266325325 - 2⁴ = 1266325309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266325327) 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, 450374 + ... + 453176.

It is an arithmetic number, because the mean of its divisors is an integer number (69365352).

Almost surely, 2^1266325325 is an apocalyptic number.

It is an amenable number.

1266325325 is a deficient number, since it is larger than the sum of its proper divisors (398443123).

1266325325 is a wasteful number, since it uses less digits than its factorization.

1266325325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893 (or 3888 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

The square root of 1266325325 is about 35585.4650805634. The cubic root of 1266325325 is about 1081.8866556935.

It can be divided in two parts, 12663 and 25325, that multiplied together give a triangular number (320690475 = T₂₅₃₂₅).

The spelling of 1266325325 in words is "one billion, two hundred sixty-six million, three hundred twenty-five thousand, three hundred twenty-five".