51736664 has 16 divisors (see below), whose sum is σ = 110864400. Its totient is φ = 22172832.

The previous prime is 51736649. The next prime is 51736673. The reversal of 51736664 is 46663715.

It is a happy number.

It is a super-3 number, since 3×51736664³ (a number of 24 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 461879 + ... + 461990.

It is an arithmetic number, because the mean of its divisors is an integer number (6929025).

Almost surely, 2^51736664 is an apocalyptic number.

It is an amenable number.

51736664 is an abundant number, since it is smaller than the sum of its proper divisors (59127736).

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

51736664 is a wasteful number, since it uses less digits than its factorization.

51736664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923882 (or 923878 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 51736664 is about 7192.8203091694. The cubic root of 51736664 is about 372.6199820695.

The spelling of 51736664 in words is "fifty-one million, seven hundred thirty-six thousand, six hundred sixty-four".