51072078 has 16 divisors (see below), whose sum is σ = 103438080. Its totient is φ = 16808376.

The previous prime is 51072061. The next prime is 51072113. The reversal of 51072078 is 87027015.

It is a happy number.

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, 53400 + ... + 54347.

It is an arithmetic number, because the mean of its divisors is an integer number (6464880).

Almost surely, 2^51072078 is an apocalyptic number.

51072078 is an abundant number, since it is smaller than the sum of its proper divisors (52366002).

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

51072078 is a wasteful number, since it uses less digits than its factorization.

51072078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107831.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 51072078 is about 7146.4731161602. The cubic root of 51072078 is about 371.0175980880.

The spelling of 51072078 in words is "fifty-one million, seventy-two thousand, seventy-eight".