511681041 has 6 divisors (see below), whose sum is σ = 739094850. Its totient is φ = 341120688.

The previous prime is 511681019. The next prime is 511681081. The reversal of 511681041 is 140186115.

It can be written as a sum of positive squares in only one way, i.e., 511664400 + 16641 = 22620^2 + 129^2 .

It is not a de Polignac number, because 511681041 - 2²¹ = 509583889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 511680996 and 511681014.

It is not an unprimeable number, because it can be changed into a prime (511681081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28426716 + ... + 28426733.

It is an arithmetic number, because the mean of its divisors is an integer number (123182475).

Almost surely, 2^511681041 is an apocalyptic number.

It is an amenable number.

511681041 is a deficient number, since it is larger than the sum of its proper divisors (227413809).

511681041 is a wasteful number, since it uses less digits than its factorization.

511681041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56853455 (or 56853452 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 511681041 is about 22620.3678352055. The cubic root of 511681041 is about 799.8338410122.

The spelling of 511681041 in words is "five hundred eleven million, six hundred eighty-one thousand, forty-one".