1305796625 has 32 divisors (see below), whose sum is σ = 1888044288. Its totient is φ = 883094400.

The previous prime is 1305796607. The next prime is 1305796693. The reversal of 1305796625 is 5266975031.

It is a de Polignac number, because none of the positive numbers 2^k-1305796625 is a prime.

It is a super-2 number, since 2×1305796625² = 3410209651722781250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53654 + ... + 74096.

It is an arithmetic number, because the mean of its divisors is an integer number (59001384).

Almost surely, 2^1305796625 is an apocalyptic number.

It is an amenable number.

1305796625 is a deficient number, since it is larger than the sum of its proper divisors (582247663).

1305796625 is an equidigital number, since it uses as much as digits as its factorization.

1305796625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20538 (or 20528 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 1305796625 is about 36135.8080717728. The cubic root of 1305796625 is about 1093.0126306212.

The spelling of 1305796625 in words is "one billion, three hundred five million, seven hundred ninety-six thousand, six hundred twenty-five".