5625384135581 has 6 divisors (see below), whose sum is σ = 6543814198590. Its totient is φ = 4821757830456.

The previous prime is 5625384135493. The next prime is 5625384135593. The reversal of 5625384135581 is 1855314835265.

It can be written as a sum of positive squares in only one way, i.e., 5467226004100 + 158158131481 = 2338210^2 + 397691^2 .

It is not a de Polignac number, because 5625384135581 - 2⁴² = 1227337624477 is a prime.

It is a super-2 number, since 2×5625384135581² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5625384135181) 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 5 ways as a sum of consecutive naturals, for example, 57401878886 + ... + 57401878983.

It is an arithmetic number, because the mean of its divisors is an integer number (1090635699765).

Almost surely, 2^{5625384135581} is an apocalyptic number.

It is an amenable number.

5625384135581 is a deficient number, since it is larger than the sum of its proper divisors (918430063009).

5625384135581 is a wasteful number, since it uses less digits than its factorization.

5625384135581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114803757883 (or 114803757876 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 56.

The spelling of 5625384135581 in words is "five trillion, six hundred twenty-five billion, three hundred eighty-four million, one hundred thirty-five thousand, five hundred eighty-one".