52621722 has 24 divisors (see below), whose sum is σ = 114281076. Its totient is φ = 17499456.

The previous prime is 52621703. The next prime is 52621729. The reversal of 52621722 is 22712625.

52621722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 51538041 + 1083681 = 7179^2 + 1041^2 .

It is not an unprimeable number, because it can be changed into a prime (52621729) 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, 5028 + ... + 11424.

Almost surely, 2^52621722 is an apocalyptic number.

52621722 is an abundant number, since it is smaller than the sum of its proper divisors (61659354).

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

52621722 is a wasteful number, since it uses less digits than its factorization.

52621722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862 (or 6859 counting only the distinct ones).

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

The square root of 52621722 is about 7254.0831260746. The cubic root of 52621722 is about 374.7327802949.

The spelling of 52621722 in words is "fifty-two million, six hundred twenty-one thousand, seven hundred twenty-two".