51326748 has 54 divisors (see below), whose sum is σ = 142621752. Its totient is φ = 15552240.

The previous prime is 51326741. The next prime is 51326801. The reversal of 51326748 is 84762315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51326741) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1536 + ... + 10247.

Almost surely, 2^51326748 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 51326748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71310876).

51326748 is an abundant number, since it is smaller than the sum of its proper divisors (91295004).

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

51326748 is a wasteful number, since it uses less digits than its factorization.

51326748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11815 (or 11799 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 51326748 is about 7164.2688391768. The cubic root of 51326748 is about 371.6332667428.

It can be divided in two parts, 513267 and 48, that added together give a palindrome (513315).

The spelling of 51326748 in words is "fifty-one million, three hundred twenty-six thousand, seven hundred forty-eight".