38235500521 has 3 divisors (see below), whose sum is σ = 38235696061. Its totient is φ = 38235304982.

The previous prime is 38235500509. The next prime is 38235500543. The reversal of 38235500521 is 12500553283.

The square root of 38235500521 is 195539.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 38235500521 - 2¹³ = 38235492329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38235500621) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 97770 + ... + 293308.

Almost surely, 2^38235500521 is an apocalyptic number.

38235500521 is the 195539-th square number.

38235500521 is the 97770-th centered octagonal number.

It is an amenable number.

38235500521 is a deficient number, since it is larger than the sum of its proper divisors (195540).

38235500521 is an frugal number, since it uses more digits than its factorization.

38235500521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391078 (or 195539 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

It can be divided in two parts, 38235 and 500521, that added together give a square (538756 = 734²).

The spelling of 38235500521 in words is "thirty-eight billion, two hundred thirty-five million, five hundred thousand, five hundred twenty-one".