51078150 has 72 divisors (see below), whose sum is σ = 138116160. Its totient is φ = 13533120.

The previous prime is 51078133. The next prime is 51078151. The reversal of 51078150 is 5187015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51078151) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100096 + ... + 100604.

It is an arithmetic number, because the mean of its divisors is an integer number (1918280).

Almost surely, 2^51078150 is an apocalyptic number.

51078150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51078150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69058080).

51078150 is an abundant number, since it is smaller than the sum of its proper divisors (87038010).

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

51078150 is a wasteful number, since it uses less digits than its factorization.

51078150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 51078150 is about 7146.8979284722. The cubic root of 51078150 is about 371.0323010312.

The spelling of 51078150 in words is "fifty-one million, seventy-eight thousand, one hundred fifty".