51867078 has 16 divisors (see below), whose sum is σ = 103956480. Its totient is φ = 17251976.

The previous prime is 51867059. The next prime is 51867083. The reversal of 51867078 is 87076815.

It is a congruent number.

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, 6150 + ... + 11897.

It is an arithmetic number, because the mean of its divisors is an integer number (6497280).

Almost surely, 2^51867078 is an apocalyptic number.

51867078 is an abundant number, since it is smaller than the sum of its proper divisors (52089402).

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

51867078 is a wasteful number, since it uses less digits than its factorization.

51867078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 51867078 is about 7201.8801711775. The cubic root of 51867078 is about 372.9328104341.

The spelling of 51867078 in words is "fifty-one million, eight hundred sixty-seven thousand, seventy-eight".