1305382525 has 12 divisors (see below), whose sum is σ = 1625398324. Its totient is φ = 1039968000.

The previous prime is 1305382501. The next prime is 1305382531. The reversal of 1305382525 is 5252835031.

It can be written as a sum of positive squares in 6 ways, for example, as 20088324 + 1285294201 = 4482^2 + 35851^2 .

It is not a de Polignac number, because 1305382525 - 2¹⁵ = 1305349757 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102306 + ... + 114355.

Almost surely, 2^1305382525 is an apocalyptic number.

It is an amenable number.

1305382525 is a deficient number, since it is larger than the sum of its proper divisors (320015799).

1305382525 is a wasteful number, since it uses less digits than its factorization.

1305382525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216912 (or 216907 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 1305382525 is about 36130.0778438132. The cubic root of 1305382525 is about 1092.8970780726.

The spelling of 1305382525 in words is "one billion, three hundred five million, three hundred eighty-two thousand, five hundred twenty-five".