51671776 has 48 divisors (see below), whose sum is σ = 110242944. Its totient is φ = 23698944.

The previous prime is 51671759. The next prime is 51671791. The reversal of 51671776 is 67717615.

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 7 ways as a sum of consecutive naturals, for example, 92490 + ... + 93046.

It is an arithmetic number, because the mean of its divisors is an integer number (2296728).

Almost surely, 2^51671776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51671776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55121472).

51671776 is an abundant number, since it is smaller than the sum of its proper divisors (58571168).

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

51671776 is a wasteful number, since it uses less digits than its factorization.

51671776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 795 counting only the distinct ones).

The product of its digits is 61740, while the sum is 40.

The square root of 51671776 is about 7188.3082849861. The cubic root of 51671776 is about 372.4641372017.

The spelling of 51671776 in words is "fifty-one million, six hundred seventy-one thousand, seven hundred seventy-six".