51964986 has 16 divisors (see below), whose sum is σ = 106141824. Its totient is φ = 16953024.

The previous prime is 51964967. The next prime is 51964993. The reversal of 51964986 is 68946915.

51964986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 91855 + ... + 92418.

It is an arithmetic number, because the mean of its divisors is an integer number (6633864).

Almost surely, 2^51964986 is an apocalyptic number.

51964986 is an abundant number, since it is smaller than the sum of its proper divisors (54176838).

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

51964986 is a wasteful number, since it uses less digits than its factorization.

51964986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184325.

The product of its digits is 466560, while the sum is 48.

The square root of 51964986 is about 7208.6743580217. The cubic root of 51964986 is about 373.1673211369.

The spelling of 51964986 in words is "fifty-one million, nine hundred sixty-four thousand, nine hundred eighty-six".