51722592 has 24 divisors (see below), whose sum is σ = 135772056. Its totient is φ = 17240832.

The previous prime is 51722581. The next prime is 51722597. The reversal of 51722592 is 29522715.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51722597) 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 3 ways as a sum of consecutive naturals, for example, 269293 + ... + 269484.

It is an arithmetic number, because the mean of its divisors is an integer number (5657169).

Almost surely, 2^51722592 is an apocalyptic number.

It is an amenable number.

51722592 is an abundant number, since it is smaller than the sum of its proper divisors (84049464).

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

51722592 is a wasteful number, since it uses less digits than its factorization.

51722592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538790 (or 538782 counting only the distinct ones).

The product of its digits is 12600, while the sum is 33.

The square root of 51722592 is about 7191.8420449840. The cubic root of 51722592 is about 372.5861956889.

The spelling of 51722592 in words is "fifty-one million, seven hundred twenty-two thousand, five hundred ninety-two".