538780211 has 4 divisors (see below), whose sum is σ = 540684312. Its totient is φ = 536876112.

The previous prime is 538780189. The next prime is 538780219. The reversal of 538780211 is 112087835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112087835 = 5 ⋅22417567.

It is a cyclic number.

It is not a de Polignac number, because 538780211 - 2⁶ = 538780147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538780219) 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, 951626 + ... + 952191.

It is an arithmetic number, because the mean of its divisors is an integer number (135171078).

Almost surely, 2^538780211 is an apocalyptic number.

538780211 is a deficient number, since it is larger than the sum of its proper divisors (1904101).

538780211 is a wasteful number, since it uses less digits than its factorization.

538780211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904100.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 538780211 is about 23211.6395586352. The cubic root of 538780211 is about 813.7116714722.

The spelling of 538780211 in words is "five hundred thirty-eight million, seven hundred eighty thousand, two hundred eleven".