1325501511 has 8 divisors (see below), whose sum is σ = 1771121664. Its totient is φ = 881774520.

The previous prime is 1325501453. The next prime is 1325501557. The reversal of 1325501511 is 1151055231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1325501511 - 2¹⁰ = 1325500487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325501011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 471655 + ... + 474456.

It is an arithmetic number, because the mean of its divisors is an integer number (221390208).

Almost surely, 2^1325501511 is an apocalyptic number.

1325501511 is a deficient number, since it is larger than the sum of its proper divisors (445620153).

1325501511 is an equidigital number, since it uses as much as digits as its factorization.

1325501511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946581.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1325501511 is about 36407.4375780554. The cubic root of 1325501511 is about 1098.4831740989.

Adding to 1325501511 its reverse (1151055231), we get a palindrome (2476556742).

The spelling of 1325501511 in words is "one billion, three hundred twenty-five million, five hundred one thousand, five hundred eleven".