51656006 has 4 divisors (see below), whose sum is σ = 77484012. Its totient is φ = 25828002.

The previous prime is 51655991. The next prime is 51656027. The reversal of 51656006 is 60065615.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51656006.

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 as a sum of consecutive naturals, namely, 12914000 + ... + 12914003.

It is an arithmetic number, because the mean of its divisors is an integer number (19371003).

Almost surely, 2^51656006 is an apocalyptic number.

51656006 is a deficient number, since it is larger than the sum of its proper divisors (25828006).

51656006 is a wasteful number, since it uses less digits than its factorization.

51656006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25828005.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 51656006 is about 7187.2112811577. The cubic root of 51656006 is about 372.4262418712.

The spelling of 51656006 in words is "fifty-one million, six hundred fifty-six thousand, six".