51722552 has 16 divisors (see below), whose sum is σ = 110834160. Its totient is φ = 22166784.

The previous prime is 51722543. The next prime is 51722557. The reversal of 51722552 is 25522715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51722557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461753 + ... + 461864.

It is an arithmetic number, because the mean of its divisors is an integer number (6927135).

Almost surely, 2^51722552 is an apocalyptic number.

It is an amenable number.

51722552 is an abundant number, since it is smaller than the sum of its proper divisors (59111608).

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

51722552 is a wasteful number, since it uses less digits than its factorization.

51722552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923630 (or 923626 counting only the distinct ones).

The product of its digits is 7000, while the sum is 29.

The square root of 51722552 is about 7191.8392640548. The cubic root of 51722552 is about 372.5860996416.

The spelling of 51722552 in words is "fifty-one million, seven hundred twenty-two thousand, five hundred fifty-two".