51152244 has 72 divisors (see below), whose sum is σ = 141053472. Its totient is φ = 14302080.

The previous prime is 51152243. The next prime is 51152249. The reversal of 51152244 is 44225115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51152243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21162 + ... + 23454.

It is an arithmetic number, because the mean of its divisors is an integer number (1959076).

Almost surely, 2^51152244 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 51152244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70526736).

51152244 is an abundant number, since it is smaller than the sum of its proper divisors (89901228).

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

51152244 is a wasteful number, since it uses less digits than its factorization.

51152244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337 (or 2322 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 51152244 is about 7152.0796975425. The cubic root of 51152244 is about 371.2116209235.

Adding to 51152244 its reverse (44225115), we get a palindrome (95377359).

It can be divided in two parts, 511522 and 44, that added together give a triangular number (511566 = T₁₀₁₁).

The spelling of 51152244 in words is "fifty-one million, one hundred fifty-two thousand, two hundred forty-four".