51075850 has 24 divisors (see below), whose sum is σ = 108573408. Its totient is φ = 17511600.

The previous prime is 51075839. The next prime is 51075851. The reversal of 51075850 is 5857015.

It is not an unprimeable number, because it can be changed into a prime (51075851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72616 + ... + 73315.

It is an arithmetic number, because the mean of its divisors is an integer number (4523892).

Almost surely, 2^51075850 is an apocalyptic number.

51075850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51075850 is an abundant number, since it is smaller than the sum of its proper divisors (57497558).

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

51075850 is a wasteful number, since it uses less digits than its factorization.

51075850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145950 (or 145945 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 51075850 is about 7146.7370176886. The cubic root of 51075850 is about 371.0267318717.

The spelling of 51075850 in words is "fifty-one million, seventy-five thousand, eight hundred fifty".