51738078 has 16 divisors (see below), whose sum is σ = 118258560. Its totient is φ = 14782296.

The previous prime is 51738061. The next prime is 51738079. The reversal of 51738078 is 87083715.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51738079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615888 + ... + 615971.

It is an arithmetic number, because the mean of its divisors is an integer number (7391160).

Almost surely, 2^51738078 is an apocalyptic number.

51738078 is an abundant number, since it is smaller than the sum of its proper divisors (66520482).

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

51738078 is a wasteful number, since it uses less digits than its factorization.

51738078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231871.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 51738078 is about 7192.9186009575. The cubic root of 51738078 is about 372.6233766953.

The spelling of 51738078 in words is "fifty-one million, seven hundred thirty-eight thousand, seventy-eight".