538775845 has 4 divisors (see below), whose sum is σ = 646531020. Its totient is φ = 431020672.

The previous prime is 538775827. The next prime is 538775869. The reversal of 538775845 is 548577835.

It is a happy number.

538775845 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 248346081 + 290429764 = 15759^2 + 17042^2 .

It is a cyclic number.

It is not a de Polignac number, because 538775845 - 2⁹ = 538775333 is a prime.

It is a super-2 number, since 2×538775845² = 580558822310928050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 538775792 and 538775801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53877580 + ... + 53877589.

It is an arithmetic number, because the mean of its divisors is an integer number (161632755).

Almost surely, 2^538775845 is an apocalyptic number.

It is an amenable number.

538775845 is a deficient number, since it is larger than the sum of its proper divisors (107755175).

538775845 is a wasteful number, since it uses less digits than its factorization.

538775845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107755174.

The product of its digits is 4704000, while the sum is 52.

The square root of 538775845 is about 23211.5455108013. The cubic root of 538775845 is about 813.7094734981.

The spelling of 538775845 in words is "five hundred thirty-eight million, seven hundred seventy-five thousand, eight hundred forty-five".