51344436 has 48 divisors (see below), whose sum is σ = 140753088. Its totient is φ = 14361600.

The previous prime is 51344417. The next prime is 51344459. The reversal of 51344436 is 63444315.

51344436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51344436² = 5272502216316192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13245 + ... + 16676.

It is an arithmetic number, because the mean of its divisors is an integer number (2932356).

Almost surely, 2^51344436 is an apocalyptic number.

It is an amenable number.

51344436 is an abundant number, since it is smaller than the sum of its proper divisors (89408652).

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

51344436 is a wasteful number, since it uses less digits than its factorization.

51344436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29952 (or 29950 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 51344436 is about 7165.5031923794. The cubic root of 51344436 is about 371.6759520516.

The spelling of 51344436 in words is "fifty-one million, three hundred forty-four thousand, four hundred thirty-six".