51326288 has 80 divisors (see below), whose sum is σ = 113326080. Its totient is φ = 22353408.

The previous prime is 51326269. The next prime is 51326299. The reversal of 51326288 is 88262315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404081 + ... + 404207.

It is an arithmetic number, because the mean of its divisors is an integer number (1416576).

Almost surely, 2^51326288 is an apocalyptic number.

51326288 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51326288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56663040).

51326288 is an abundant number, since it is smaller than the sum of its proper divisors (61999792).

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

51326288 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 51326288 = (15232868)₁₂.

51326288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 238 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 51326288 is about 7164.2367353403. The cubic root of 51326288 is about 371.6321565237.

The spelling of 51326288 in words is "fifty-one million, three hundred twenty-six thousand, two hundred eighty-eight".