51041790 has 72 divisors (see below), whose sum is σ = 140150088. Its totient is φ = 12886560.

The previous prime is 51041789. The next prime is 51041797. The reversal of 51041790 is 9714015.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51041797) 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, 31705 + ... + 33275.

It is an arithmetic number, because the mean of its divisors is an integer number (1946529).

Almost surely, 2^51041790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51041790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70075044).

51041790 is an abundant number, since it is smaller than the sum of its proper divisors (89108298).

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

51041790 is a wasteful number, since it uses less digits than its factorization.

51041790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 51041790 is about 7144.3537146477. The cubic root of 51041790 is about 370.9442403056.

The spelling of 51041790 in words is "fifty-one million, forty-one thousand, seven hundred ninety".