51344772 has 12 divisors (see below), whose sum is σ = 119804496. Its totient is φ = 17114920.

The previous prime is 51344771. The next prime is 51344791. The reversal of 51344772 is 27744315.

51344772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×51344772² = 5272571223463968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51344771) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2139354 + ... + 2139377.

It is an arithmetic number, because the mean of its divisors is an integer number (9983708).

Almost surely, 2^51344772 is an apocalyptic number.

It is an amenable number.

51344772 is an abundant number, since it is smaller than the sum of its proper divisors (68459724).

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

51344772 is a wasteful number, since it uses less digits than its factorization.

51344772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278738 (or 4278736 counting only the distinct ones).

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

The square root of 51344772 is about 7165.5266380078. The cubic root of 51344772 is about 371.6767628038.

The spelling of 51344772 in words is "fifty-one million, three hundred forty-four thousand, seven hundred seventy-two".