51873378 has 16 divisors (see below), whose sum is σ = 103817376. Its totient is φ = 17279360.

The previous prime is 51873347. The next prime is 51873389. The reversal of 51873378 is 87337815.

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, 15538 + ... + 18578.

It is an arithmetic number, because the mean of its divisors is an integer number (6488586).

Almost surely, 2^51873378 is an apocalyptic number.

51873378 is an abundant number, since it is smaller than the sum of its proper divisors (51943998).

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

51873378 is a wasteful number, since it uses less digits than its factorization.

51873378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5889.

The product of its digits is 141120, while the sum is 42.

The square root of 51873378 is about 7202.3175436800. The cubic root of 51873378 is about 372.9479091677.

The spelling of 51873378 in words is "fifty-one million, eight hundred seventy-three thousand, three hundred seventy-eight".