51365012 has 12 divisors (see below), whose sum is σ = 90224820. Its totient is φ = 25586496.

The previous prime is 51365011. The next prime is 51365033. The reversal of 51365012 is 21056315.

It can be written as a sum of positive squares in 2 ways, for example, as 2979076 + 48385936 = 1726^2 + 6956^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51365011) 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, 22793 + ... + 24944.

It is an arithmetic number, because the mean of its divisors is an integer number (7518735).

Almost surely, 2^51365012 is an apocalyptic number.

It is an amenable number.

51365012 is a deficient number, since it is larger than the sum of its proper divisors (38859808).

51365012 is a wasteful number, since it uses less digits than its factorization.

51365012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48010 (or 48008 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 51365012 is about 7166.9388165381. The cubic root of 51365012 is about 371.7255944513.

The spelling of 51365012 in words is "fifty-one million, three hundred sixty-five thousand, twelve".