51051072 has 28 divisors (see below), whose sum is σ = 135073136. Its totient is φ = 17016960.

The previous prime is 51051067. The next prime is 51051073. The reversal of 51051072 is 27015015.

It is not an unprimeable number, because it can be changed into a prime (51051073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132754 + ... + 133137.

Almost surely, 2^51051072 is an apocalyptic number.

It is an amenable number.

51051072 is an abundant number, since it is smaller than the sum of its proper divisors (84022064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51051072 is a wasteful number, since it uses less digits than its factorization.

51051072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265906 (or 265896 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 51051072 is about 7145.0032890125. The cubic root of 51051072 is about 370.9667244684.

Adding to 51051072 its reverse (27015015), we get a palindrome (78066087).

The spelling of 51051072 in words is "fifty-one million, fifty-one thousand, seventy-two".