51201344 has 42 divisors (see below), whose sum is σ = 103774494. Its totient is φ = 25062400.

The previous prime is 51201341. The next prime is 51201361. The reversal of 51201344 is 44310215.

It can be written as a sum of positive squares in 3 ways, for example, as 6150400 + 45050944 = 2480^2 + 6712^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51201341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 506894 + ... + 506994.

Almost surely, 2^51201344 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 51201344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51887247).

51201344 is an abundant number, since it is smaller than the sum of its proper divisors (52573150).

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

51201344 is an equidigital number, since it uses as much as digits as its factorization.

51201344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 51201344 is about 7155.5114422381. The cubic root of 51201344 is about 371.3303557728.

Adding to 51201344 its reverse (44310215), we get a palindrome (95511559).

The spelling of 51201344 in words is "fifty-one million, two hundred one thousand, three hundred forty-four".