538985571 has 4 divisors (see below), whose sum is σ = 718647432. Its totient is φ = 359323712.

The previous prime is 538985543. The next prime is 538985599. The reversal of 538985571 is 175589835.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (538985543) and next prime (538985599).

It is a cyclic number.

It is not a de Polignac number, because 538985571 - 2⁵ = 538985539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (538985071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89830926 + ... + 89830931.

It is an arithmetic number, because the mean of its divisors is an integer number (179661858).

Almost surely, 2^538985571 is an apocalyptic number.

538985571 is a deficient number, since it is larger than the sum of its proper divisors (179661861).

538985571 is a wasteful number, since it uses less digits than its factorization.

538985571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179661860.

The product of its digits is 1512000, while the sum is 51.

The square root of 538985571 is about 23216.0627798944. The cubic root of 538985571 is about 813.8150423824.

The spelling of 538985571 in words is "five hundred thirty-eight million, nine hundred eighty-five thousand, five hundred seventy-one".