538025161 has 4 divisors (see below), whose sum is σ = 538076800. Its totient is φ = 537973524.

The previous prime is 538025141. The next prime is 538025179. The reversal of 538025161 is 161520835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 538025161 - 2²³ = 529636553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538025141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4101 + ... + 33058.

It is an arithmetic number, because the mean of its divisors is an integer number (134519200).

Almost surely, 2^538025161 is an apocalyptic number.

It is an amenable number.

538025161 is a deficient number, since it is larger than the sum of its proper divisors (51639).

538025161 is a wasteful number, since it uses less digits than its factorization.

538025161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51638.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 538025161 is about 23195.3693870134. The cubic root of 538025161 is about 813.3313802060.

Adding to 538025161 its reverse (161520835), we get a palindrome (699545996).

The spelling of 538025161 in words is "five hundred thirty-eight million, twenty-five thousand, one hundred sixty-one".