1352552998581 has 32 divisors (see below), whose sum is σ = 2126691619200. Its totient is φ = 846644762880.

The previous prime is 1352552998549. The next prime is 1352552998583. The reversal of 1352552998581 is 1858992552531.

It is a happy number.

1352552998581 is a `hidden beast` number, since 1 + 3 + 5 + 25 + 5 + 29 + 9 + 8 + 581 = 666.

It is not a de Polignac number, because 1352552998581 - 2⁵ = 1352552998549 is a prime.

It is a super-2 number, since 2×1352552998581² (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 (1352552998583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3306451 + ... + 3692928.

It is an arithmetic number, because the mean of its divisors is an integer number (66459113100).

Almost surely, 2^{1352552998581} is an apocalyptic number.

It is an amenable number.

1352552998581 is a deficient number, since it is larger than the sum of its proper divisors (774138620619).

1352552998581 is a wasteful number, since it uses less digits than its factorization.

1352552998581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6999826 (or 6999820 counting only the distinct ones).

The product of its digits is 38880000, while the sum is 63.

The spelling of 1352552998581 in words is "one trillion, three hundred fifty-two billion, five hundred fifty-two million, nine hundred ninety-eight thousand, five hundred eighty-one".