51722460 has 36 divisors (see below), whose sum is σ = 156892008. Its totient is φ = 13792608.

The previous prime is 51722417. The next prime is 51722467. The reversal of 51722460 is 6422715.

51722460 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51722467) 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 11 ways as a sum of consecutive naturals, for example, 143494 + ... + 143853.

Almost surely, 2^51722460 is an apocalyptic number.

It is an amenable number.

51722460 is an abundant number, since it is smaller than the sum of its proper divisors (105169548).

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

51722460 is a wasteful number, since it uses less digits than its factorization.

51722460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287362 (or 287357 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 51722460 is about 7191.8328679134. The cubic root of 51722460 is about 372.5858787325.

The spelling of 51722460 in words is "fifty-one million, seven hundred twenty-two thousand, four hundred sixty".