51881884 has 6 divisors (see below), whose sum is σ = 90793304. Its totient is φ = 25940940.

The previous prime is 51881867. The next prime is 51881911. The reversal of 51881884 is 48818815.

It is a super-3 number, since 3×51881884³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51881884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6485232 + ... + 6485239.

Almost surely, 2^51881884 is an apocalyptic number.

It is an amenable number.

51881884 is a deficient number, since it is larger than the sum of its proper divisors (38911420).

51881884 is a wasteful number, since it uses less digits than its factorization.

51881884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12970475 (or 12970473 counting only the distinct ones).

The product of its digits is 81920, while the sum is 43.

The square root of 51881884 is about 7202.9080238470. The cubic root of 51881884 is about 372.9682929153.

The spelling of 51881884 in words is "fifty-one million, eight hundred eighty-one thousand, eight hundred eighty-four".