51671888 has 20 divisors (see below), whose sum is σ = 100226100. Its totient is φ = 25807104.

The previous prime is 51671839. The next prime is 51671911. The reversal of 51671888 is 88817615.

It can be written as a sum of positive squares in 2 ways, for example, as 29506624 + 22165264 = 5432^2 + 4708^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 25538 + ... + 27486.

It is an arithmetic number, because the mean of its divisors is an integer number (5011305).

Almost surely, 2^51671888 is an apocalyptic number.

It is an amenable number.

51671888 is a deficient number, since it is larger than the sum of its proper divisors (48554212).

51671888 is a wasteful number, since it uses less digits than its factorization.

51671888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3614 (or 3608 counting only the distinct ones).

The product of its digits is 107520, while the sum is 44.

The square root of 51671888 is about 7188.3160754102. The cubic root of 51671888 is about 372.4644063103.

The spelling of 51671888 in words is "fifty-one million, six hundred seventy-one thousand, eight hundred eighty-eight".