38053832521 has 4 divisors (see below), whose sum is σ = 38575117972. Its totient is φ = 37532547072.

The previous prime is 38053832513. The next prime is 38053832527. The reversal of 38053832521 is 12523835083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12523835083 = 71593 ⋅174931.

It can be written as a sum of positive squares in 2 ways, for example, as 10567840000 + 27485992521 = 102800^2 + 165789^2 .

It is a cyclic number.

It is not a de Polignac number, because 38053832521 - 2³ = 38053832513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38053832527) 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 3 ways as a sum of consecutive naturals, for example, 260642616 + ... + 260642761.

It is an arithmetic number, because the mean of its divisors is an integer number (9643779493).

Almost surely, 2^38053832521 is an apocalyptic number.

It is an amenable number.

38053832521 is a deficient number, since it is larger than the sum of its proper divisors (521285451).

38053832521 is an equidigital number, since it uses as much as digits as its factorization.

38053832521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521285450.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 38053832521 in words is "thirty-eight billion, fifty-three million, eight hundred thirty-two thousand, five hundred twenty-one".