51722968 has 32 divisors (see below), whose sum is σ = 106074000. Its totient is φ = 23448960.

The previous prime is 51722963. The next prime is 51722969. The reversal of 51722968 is 86922715.

51722968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51722968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51722963) 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 7 ways as a sum of consecutive naturals, for example, 61978 + ... + 62806.

Almost surely, 2^51722968 is an apocalyptic number.

It is an amenable number.

51722968 is an abundant number, since it is smaller than the sum of its proper divisors (54351032).

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

51722968 is a wasteful number, since it uses less digits than its factorization.

51722968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555 (or 1551 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 51722968 is about 7191.8681856664. The cubic root of 51722968 is about 372.5870985314.

The spelling of 51722968 in words is "fifty-one million, seven hundred twenty-two thousand, nine hundred sixty-eight".