511405012 has 12 divisors (see below), whose sum is σ = 895134240. Its totient is φ = 255652376.

The previous prime is 511404989. The next prime is 511405019. The reversal of 511405012 is 210504115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511405019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19539 + ... + 37477.

It is an arithmetic number, because the mean of its divisors is an integer number (74594520).

Almost surely, 2^511405012 is an apocalyptic number.

It is an amenable number.

511405012 is a deficient number, since it is larger than the sum of its proper divisors (383729228).

511405012 is a wasteful number, since it uses less digits than its factorization.

511405012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25070 (or 25068 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 511405012 is about 22614.2656745692. The cubic root of 511405012 is about 799.6899902997.

Adding to 511405012 its reverse (210504115), we get a palindrome (721909127).

The spelling of 511405012 in words is "five hundred eleven million, four hundred five thousand, twelve".