541563869 has 16 divisors (see below), whose sum is σ = 675726720. Its totient is φ = 421666560.

The previous prime is 541563839. The next prime is 541563929. The reversal of 541563869 is 968365145.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-541563869 is a prime.

It is a super-2 number, since 2×541563869² = 586582848412498322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541563829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151697 + ... + 155225.

It is an arithmetic number, because the mean of its divisors is an integer number (42232920).

Almost surely, 2^541563869 is an apocalyptic number.

It is an amenable number.

541563869 is a deficient number, since it is larger than the sum of its proper divisors (134162851).

541563869 is a wasteful number, since it uses less digits than its factorization.

541563869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540.

The product of its digits is 777600, while the sum is 47.

The square root of 541563869 is about 23271.5248533481. The cubic root of 541563869 is about 815.1106372441.

The spelling of 541563869 in words is "five hundred forty-one million, five hundred sixty-three thousand, eight hundred sixty-nine".