38821525585 has 8 divisors (see below), whose sum is σ = 47281142016. Its totient is φ = 30593679600.

The previous prime is 38821525583. The next prime is 38821525607. The reversal of 38821525585 is 58552512883.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38821525585 - 2¹ = 38821525583 is a prime.

It is a super-2 number, since 2×38821525585² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38821525583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57942241 + ... + 57942910.

It is an arithmetic number, because the mean of its divisors is an integer number (5910142752).

Almost surely, 2^38821525585 is an apocalyptic number.

It is an amenable number.

38821525585 is a deficient number, since it is larger than the sum of its proper divisors (8459616431).

38821525585 is a wasteful number, since it uses less digits than its factorization.

38821525585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115885223.

The product of its digits is 3840000, while the sum is 52.

The spelling of 38821525585 in words is "thirty-eight billion, eight hundred twenty-one million, five hundred twenty-five thousand, five hundred eighty-five".