539220481 has 4 divisors (see below), whose sum is σ = 539717632. Its totient is φ = 538723332.

The previous prime is 539220431. The next prime is 539220503. The reversal of 539220481 is 184022935.

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 an emirpimes, since its reverse is a distinct semiprime: 184022935 = 5 ⋅36804587.

It is a cyclic number.

It is not a de Polignac number, because 539220481 - 2²⁷ = 405002753 is a prime.

It is a super-2 number, since 2×539220481² = 581517454259742722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (539220431) 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, 246945 + ... + 249118.

It is an arithmetic number, because the mean of its divisors is an integer number (134929408).

Almost surely, 2^539220481 is an apocalyptic number.

It is an amenable number.

539220481 is a deficient number, since it is larger than the sum of its proper divisors (497151).

539220481 is a wasteful number, since it uses less digits than its factorization.

539220481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497150.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 539220481 is about 23221.1214414808. The cubic root of 539220481 is about 813.9332555190.

The spelling of 539220481 in words is "five hundred thirty-nine million, two hundred twenty thousand, four hundred eighty-one".