51910830 has 24 divisors (see below), whose sum is σ = 134968392. Its totient is φ = 13842864.

The previous prime is 51910829. The next prime is 51910861. The reversal of 51910830 is 3801915.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51910794 and 51910803.

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 11 ways as a sum of consecutive naturals, for example, 288304 + ... + 288483.

It is an arithmetic number, because the mean of its divisors is an integer number (5623683).

Almost surely, 2^51910830 is an apocalyptic number.

51910830 is an abundant number, since it is smaller than the sum of its proper divisors (83057562).

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

51910830 is a wasteful number, since it uses less digits than its factorization.

51910830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576800 (or 576797 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 51910830 is about 7204.9170710009. The cubic root of 51910830 is about 373.0376423185.

The spelling of 51910830 in words is "fifty-one million, nine hundred ten thousand, eight hundred thirty".