52222921 has 2 divisors, whose sum is σ = 52222922. Its totient is φ = 52222920.

The previous prime is 52222909. The next prime is 52222979. The reversal of 52222921 is 12922225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47334400 + 4888521 = 6880^2 + 2211^2 .

It is a cyclic number.

It is not a de Polignac number, because 52222921 - 2⁹ = 52222409 is a prime.

It is not a weakly prime, because it can be changed into another prime (52222901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26111460 + 26111461.

It is an arithmetic number, because the mean of its divisors is an integer number (26111461).

Almost surely, 2^52222921 is an apocalyptic number.

It is an amenable number.

52222921 is a deficient number, since it is larger than the sum of its proper divisors (1).

52222921 is an equidigital number, since it uses as much as digits as its factorization.

52222921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 52222921 is about 7226.5428110543. The cubic root of 52222921 is about 373.7837239846.

The spelling of 52222921 in words is "fifty-two million, two hundred twenty-two thousand, nine hundred twenty-one".