51206770 has 8 divisors (see below), whose sum is σ = 92172204. Its totient is φ = 20482704.

The previous prime is 51206711. The next prime is 51206777. The reversal of 51206770 is 7760215.

51206770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49519369 + 1687401 = 7037^2 + 1299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51206777) 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, 2560329 + ... + 2560348.

Almost surely, 2^51206770 is an apocalyptic number.

51206770 is a deficient number, since it is larger than the sum of its proper divisors (40965434).

51206770 is a wasteful number, since it uses less digits than its factorization.

51206770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120684.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 51206770 is about 7155.8905804938. The cubic root of 51206770 is about 371.3434724033.

Adding to 51206770 its reverse (7760215), we get a palindrome (58966985).

The spelling of 51206770 in words is "fifty-one million, two hundred six thousand, seven hundred seventy".