1325661575 has 12 divisors (see below), whose sum is σ = 1878652080. Its totient is φ = 909024960.

The previous prime is 1325661553. The next prime is 1325661583. The reversal of 1325661575 is 5751665231.

It is not a de Polignac number, because 1325661575 - 2¹⁰ = 1325660551 is a prime.

It is a super-2 number, since 2×1325661575² = 3514757222862961250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3787430 + ... + 3787779.

It is an arithmetic number, because the mean of its divisors is an integer number (156554340).

Almost surely, 2^1325661575 is an apocalyptic number.

1325661575 is a deficient number, since it is larger than the sum of its proper divisors (552990505).

1325661575 is an equidigital number, since it uses as much as digits as its factorization.

1325661575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575226 (or 7575221 counting only the distinct ones).

The product of its digits is 189000, while the sum is 41.

The square root of 1325661575 is about 36409.6357438522. The cubic root of 1325661575 is about 1098.5273889445.

The spelling of 1325661575 in words is "one billion, three hundred twenty-five million, six hundred sixty-one thousand, five hundred seventy-five".