1325220324555 has 16 divisors (see below), whose sum is σ = 2120368101120. Its totient is φ = 706778979168.

The previous prime is 1325220324541. The next prime is 1325220324557. The reversal of 1325220324555 is 5554230225231.

It is not a de Polignac number, because 1325220324555 - 2⁴ = 1325220324539 is a prime.

It is a super-3 number, since 3×1325220324555³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1325220324557) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2684224 + ... + 3139346.

It is an arithmetic number, because the mean of its divisors is an integer number (132523006320).

Almost surely, 2^{1325220324555} is an apocalyptic number.

1325220324555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1325220324555 is a deficient number, since it is larger than the sum of its proper divisors (795147776565).

1325220324555 is a wasteful number, since it uses less digits than its factorization.

1325220324555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649250.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 1325220324555 its reverse (5554230225231), we get a palindrome (6879450549786).

The spelling of 1325220324555 in words is "one trillion, three hundred twenty-five billion, two hundred twenty million, three hundred twenty-four thousand, five hundred fifty-five".