51411812 has 12 divisors (see below), whose sum is σ = 90796860. Its totient is φ = 25469856.

The previous prime is 51411799. The next prime is 51411817. The reversal of 51411812 is 21811415.

It can be written as a sum of positive squares in 2 ways, for example, as 29658916 + 21752896 = 5446^2 + 4664^2 .

It is not an unprimeable number, because it can be changed into a prime (51411817) 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, 58523 + ... + 59394.

It is an arithmetic number, because the mean of its divisors is an integer number (7566405).

Almost surely, 2^51411812 is an apocalyptic number.

It is an amenable number.

51411812 is a deficient number, since it is larger than the sum of its proper divisors (39385048).

51411812 is a wasteful number, since it uses less digits than its factorization.

51411812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118030 (or 118028 counting only the distinct ones).

The product of its digits is 320, while the sum is 23.

The square root of 51411812 is about 7170.2030654647. The cubic root of 51411812 is about 371.8384564707.

The spelling of 51411812 in words is "fifty-one million, four hundred eleven thousand, eight hundred twelve".