52722130 has 16 divisors (see below), whose sum is σ = 94984344. Its totient is φ = 21070080.

The previous prime is 52722097. The next prime is 52722167. The reversal of 52722130 is 3122725.

52722130 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 4 ways, for example, as 20675209 + 32046921 = 4547^2 + 5661^2 .

It is an unprimeable number.

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, 17194 + ... + 20026.

Almost surely, 2^52722130 is an apocalyptic number.

52722130 is a deficient number, since it is larger than the sum of its proper divisors (42262214).

52722130 is a wasteful number, since it uses less digits than its factorization.

52722130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4701.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 52722130 is about 7261.0006197493. Note that the first 3 decimals coincide. The cubic root of 52722130 is about 374.9709725680.

Adding to 52722130 its reverse (3122725), we get a palindrome (55844855).

The spelling of 52722130 in words is "fifty-two million, seven hundred twenty-two thousand, one hundred thirty".