511842241 has 4 divisors (see below), whose sum is σ = 511890772. Its totient is φ = 511793712.

The previous prime is 511842229. The next prime is 511842263. The reversal of 511842241 is 142248115.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8288641 + 503553600 = 2879^2 + 22440^2 .

It is a cyclic number.

It is not a de Polignac number, because 511842241 - 2²³ = 503453633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511842211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026 + ... + 32011.

It is an arithmetic number, because the mean of its divisors is an integer number (127972693).

Almost surely, 2^511842241 is an apocalyptic number.

It is an amenable number.

511842241 is a deficient number, since it is larger than the sum of its proper divisors (48531).

511842241 is a wasteful number, since it uses less digits than its factorization.

511842241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48530.

The product of its digits is 2560, while the sum is 28.

The square root of 511842241 is about 22623.9307150636. The cubic root of 511842241 is about 799.9178254136.

The spelling of 511842241 in words is "five hundred eleven million, eight hundred forty-two thousand, two hundred forty-one".