51270064 has 20 divisors (see below), whose sum is σ = 99856456. Its totient is φ = 25500672.

The previous prime is 51270053. The next prime is 51270067. The reversal of 51270064 is 46007215.

It is not an unprimeable number, because it can be changed into a prime (51270067) 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, 5214 + ... + 11389.

Almost surely, 2^51270064 is an apocalyptic number.

It is an amenable number.

51270064 is a deficient number, since it is larger than the sum of its proper divisors (48586392).

51270064 is a wasteful number, since it uses less digits than its factorization.

51270064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16804 (or 16798 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 51270064 is about 7160.3117250578. The cubic root of 51270064 is about 371.4964087986.

Adding to 51270064 its reverse (46007215), we get a palindrome (97277279).

The spelling of 51270064 in words is "fifty-one million, two hundred seventy thousand, sixty-four".