51075156 has 48 divisors (see below), whose sum is σ = 131382720. Its totient is φ = 15313920.

The previous prime is 51075139. The next prime is 51075161. The reversal of 51075156 is 65157015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10810 + ... + 14798.

It is an arithmetic number, because the mean of its divisors is an integer number (2737140).

Almost surely, 2^51075156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51075156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65691360).

51075156 is an abundant number, since it is smaller than the sum of its proper divisors (80307564).

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

51075156 is a wasteful number, since it uses less digits than its factorization.

51075156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 51075156 is about 7146.6884638971. The cubic root of 51075156 is about 371.0250514055.

The spelling of 51075156 in words is "fifty-one million, seventy-five thousand, one hundred fifty-six".