51673880 has 32 divisors (see below), whose sum is σ = 123107040. Its totient is φ = 19453440.

The previous prime is 51673879. The next prime is 51673903. The reversal of 51673880 is 8837615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37316 + ... + 38675.

It is an arithmetic number, because the mean of its divisors is an integer number (3847095).

Almost surely, 2^51673880 is an apocalyptic number.

It is an amenable number.

51673880 is an abundant number, since it is smaller than the sum of its proper divisors (71433160).

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

51673880 is a wasteful number, since it uses less digits than its factorization.

51673880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76019 (or 76015 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 51673880 is about 7188.4546322558. The cubic root of 51673880 is about 372.4691925335.

The spelling of 51673880 in words is "fifty-one million, six hundred seventy-three thousand, eight hundred eighty".