52252205221 has 2 divisors, whose sum is σ = 52252205222. Its totient is φ = 52252205220.

The previous prime is 52252205171. The next prime is 52252205251. The reversal of 52252205221 is 12250225225.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52217277121 + 34928100 = 228511^2 + 5910^2 .

It is a cyclic number.

It is not a de Polignac number, because 52252205221 - 2¹¹ = 52252203173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52252205221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52252205251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26126102610 + 26126102611.

It is an arithmetic number, because the mean of its divisors is an integer number (26126102611).

Almost surely, 2^52252205221 is an apocalyptic number.

It is an amenable number.

52252205221 is a deficient number, since it is larger than the sum of its proper divisors (1).

52252205221 is an equidigital number, since it uses as much as digits as its factorization.

52252205221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 52252205221 in words is "fifty-two billion, two hundred fifty-two million, two hundred five thousand, two hundred twenty-one".