51841320 has 64 divisors (see below), whose sum is σ = 156608640. Its totient is φ = 13728000.

The previous prime is 51841303. The next prime is 51841327. The reversal of 51841320 is 2314815.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (51841327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16690 + ... + 19550.

It is an arithmetic number, because the mean of its divisors is an integer number (2447010).

Almost surely, 2^51841320 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 51841320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78304320).

51841320 is an abundant number, since it is smaller than the sum of its proper divisors (104767320).

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

51841320 is a wasteful number, since it uses less digits than its factorization.

51841320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3022 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 51841320 is about 7200.0916660831. The cubic root of 51841320 is about 372.8710654615.

The spelling of 51841320 in words is "fifty-one million, eight hundred forty-one thousand, three hundred twenty".