51345688 has 16 divisors (see below), whose sum is σ = 96536880. Its totient is φ = 25602528.

The previous prime is 51345643. The next prime is 51345691. The reversal of 51345688 is 88654315.

51345688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51345688.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5620 + ... + 11587.

It is an arithmetic number, because the mean of its divisors is an integer number (6033555).

Almost surely, 2^51345688 is an apocalyptic number.

It is an amenable number.

51345688 is a deficient number, since it is larger than the sum of its proper divisors (45191192).

51345688 is a wasteful number, since it uses less digits than its factorization.

51345688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586 (or 17582 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 51345688 is about 7165.5905548671. The cubic root of 51345688 is about 371.6789730509.

The spelling of 51345688 in words is "fifty-one million, three hundred forty-five thousand, six hundred eighty-eight".