1325550555231 has 64 divisors (see below), whose sum is σ = 2075077948416. Its totient is φ = 737052825600.

The previous prime is 1325550555229. The next prime is 1325550555289.

1325550555231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1325550555231 - 2¹ = 1325550555229 is a prime.

It is a super-2 number, since 2×1325550555231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325550555631) 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 63 ways as a sum of consecutive naturals, for example, 79171521 + ... + 79188261.

It is an arithmetic number, because the mean of its divisors is an integer number (32423092944).

Almost surely, 2^{1325550555231} is an apocalyptic number.

1325550555231 is a deficient number, since it is larger than the sum of its proper divisors (749527393185).

1325550555231 is a wasteful number, since it uses less digits than its factorization.

1325550555231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17472.

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 1325550555231 in words is "one trillion, three hundred twenty-five billion, five hundred fifty million, five hundred fifty-five thousand, two hundred thirty-one".