51671870 has 8 divisors (see below), whose sum is σ = 93009384. Its totient is φ = 20668744.

The previous prime is 51671839. The next prime is 51671911. The reversal of 51671870 is 7817615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51671870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2583584 + ... + 2583603.

It is an arithmetic number, because the mean of its divisors is an integer number (11626173).

Almost surely, 2^51671870 is an apocalyptic number.

51671870 is a deficient number, since it is larger than the sum of its proper divisors (41337514).

51671870 is a wasteful number, since it uses less digits than its factorization.

51671870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5167194.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 51671870 is about 7188.3148233783. The cubic root of 51671870 is about 372.4643630607.

The spelling of 51671870 in words is "fifty-one million, six hundred seventy-one thousand, eight hundred seventy".