541775681 has 4 divisors (see below), whose sum is σ = 554989764. Its totient is φ = 528561600.

The previous prime is 541775677. The next prime is 541775687. The reversal of 541775681 is 186577145.

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 283080625 + 258695056 = 16825^2 + 16084^2 .

It is a cyclic number.

It is not a de Polignac number, because 541775681 - 2² = 541775677 is a prime.

It is a super-2 number, since 2×541775681² = 587041777046027522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541775687) 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, 6606980 + ... + 6607061.

It is an arithmetic number, because the mean of its divisors is an integer number (138747441).

Almost surely, 2^541775681 is an apocalyptic number.

It is an amenable number.

541775681 is a deficient number, since it is larger than the sum of its proper divisors (13214083).

541775681 is a wasteful number, since it uses less digits than its factorization.

541775681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214082.

The product of its digits is 235200, while the sum is 44.

The square root of 541775681 is about 23276.0752920246. The cubic root of 541775681 is about 815.2168898461.

The spelling of 541775681 in words is "five hundred forty-one million, seven hundred seventy-five thousand, six hundred eighty-one".