51833880 has 192 divisors, whose sum is σ = 196035840. Its totient is φ = 11632896.

The previous prime is 51833857. The next prime is 51833911. The reversal of 51833880 is 8833815.

It is a happy number.

It is a super-2 number, since 2×51833880² = 5373502231708800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168687 + ... + 168993.

It is an arithmetic number, because the mean of its divisors is an integer number (1021020).

Almost surely, 2^51833880 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 51833880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98017920).

51833880 is an abundant number, since it is smaller than the sum of its proper divisors (144201960).

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

51833880 is a wasteful number, since it uses less digits than its factorization.

51833880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 51833880 is about 7199.5749874559. The cubic root of 51833880 is about 372.8532270946.

The spelling of 51833880 in words is "fifty-one million, eight hundred thirty-three thousand, eight hundred eighty".