51064988 has 24 divisors (see below), whose sum is σ = 97680912. Its totient is φ = 23215104.

The previous prime is 51064963. The next prime is 51064999. The reversal of 51064988 is 88946015.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3845 + ... + 10812.

It is an arithmetic number, because the mean of its divisors is an integer number (4070038).

Almost surely, 2^51064988 is an apocalyptic number.

It is an amenable number.

51064988 is a deficient number, since it is larger than the sum of its proper divisors (46615924).

51064988 is a wasteful number, since it uses less digits than its factorization.

51064988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14741 (or 14739 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 51064988 is about 7145.9770500611. The cubic root of 51064988 is about 371.0004286509. Note that the first 3 decimals are identical.

The spelling of 51064988 in words is "fifty-one million, sixty-four thousand, nine hundred eighty-eight".