1325885385 has 32 divisors (see below), whose sum is σ = 2319363072. Its totient is φ = 641439680.

The previous prime is 1325885381. The next prime is 1325885389. The reversal of 1325885385 is 5835885231.

It is an interprime number because it is at equal distance from previous prime (1325885381) and next prime (1325885389).

It is not a de Polignac number, because 1325885385 - 2² = 1325885381 is a prime.

It is a super-3 number, since 3×1325885385³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1325885381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68452 + ... + 85658.

It is an arithmetic number, because the mean of its divisors is an integer number (72480096).

Almost surely, 2^1325885385 is an apocalyptic number.

1325885385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1325885385 is a deficient number, since it is larger than the sum of its proper divisors (993477687).

1325885385 is a wasteful number, since it uses less digits than its factorization.

1325885385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17693.

The product of its digits is 1152000, while the sum is 48.

The square root of 1325885385 is about 36412.7091137147. The cubic root of 1325885385 is about 1098.5892065267.

The spelling of 1325885385 in words is "one billion, three hundred twenty-five million, eight hundred eighty-five thousand, three hundred eighty-five".