51252344 has 64 divisors (see below), whose sum is σ = 114670080. Its totient is φ = 21168000.

The previous prime is 51252343. The next prime is 51252353. The reversal of 51252344 is 44325215.

It is a happy number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252343) 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 15 ways as a sum of consecutive naturals, for example, 80909 + ... + 81539.

It is an arithmetic number, because the mean of its divisors is an integer number (1791720).

Almost surely, 2^51252344 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 51252344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57335040).

51252344 is an abundant number, since it is smaller than the sum of its proper divisors (63417736).

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

51252344 is a wasteful number, since it uses less digits than its factorization.

51252344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 728 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 51252344 is about 7159.0742418276. The cubic root of 51252344 is about 371.4536049062.

Adding to 51252344 its reverse (44325215), we get a palindrome (95577559).

The spelling of 51252344 in words is "fifty-one million, two hundred fifty-two thousand, three hundred forty-four".