51716450 has 48 divisors (see below), whose sum is σ = 100172160. Its totient is φ = 19849920.

The previous prime is 51716449. The next prime is 51716507. The reversal of 51716450 is 5461715.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138464 + ... + 138836.

It is an arithmetic number, because the mean of its divisors is an integer number (2086920).

Almost surely, 2^51716450 is an apocalyptic number.

51716450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51716450 is a deficient number, since it is larger than the sum of its proper divisors (48455710).

51716450 is a wasteful number, since it uses less digits than its factorization.

51716450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 51716450 is about 7191.4150207035. The cubic root of 51716450 is about 372.5714470403.

The spelling of 51716450 in words is "fifty-one million, seven hundred sixteen thousand, four hundred fifty".