51327744 has 144 divisors (see below), whose sum is σ = 151435872. Its totient is φ = 15335424.

The previous prime is 51327719. The next prime is 51327791. The reversal of 51327744 is 44772315.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (23520) is a multiple of the sum of its prime divisors (168).

It is a zygodrome in base 2.

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, 529104 + ... + 529200.

It is an arithmetic number, because the mean of its divisors is an integer number (1051638).

Almost surely, 2^51327744 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 51327744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75717936).

51327744 is an abundant number, since it is smaller than the sum of its proper divisors (100108128).

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

51327744 is a wasteful number, since it uses less digits than its factorization.

51327744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 168 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 51327744 is about 7164.3383504689. The cubic root of 51327744 is about 371.6356705859.

The spelling of 51327744 in words is "fifty-one million, three hundred twenty-seven thousand, seven hundred forty-four".