51873850 has 72 divisors (see below), whose sum is σ = 116028288. Its totient is φ = 17186400.

The previous prime is 51873847. The next prime is 51873869. The reversal of 51873850 is 5837815.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75609 + ... + 76291.

It is an arithmetic number, because the mean of its divisors is an integer number (1611504).

Almost surely, 2^51873850 is an apocalyptic number.

51873850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51873850 is an abundant number, since it is smaller than the sum of its proper divisors (64154438).

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

51873850 is a wasteful number, since it uses less digits than its factorization.

51873850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 51873850 is about 7202.3503108360. The cubic root of 51873850 is about 372.9490403252.

The spelling of 51873850 in words is "fifty-one million, eight hundred seventy-three thousand, eight hundred fifty".