52421197 has 2 divisors, whose sum is σ = 52421198. Its totient is φ = 52421196.

The previous prime is 52421191. The next prime is 52421207. The reversal of 52421197 is 79112425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27311076 + 25110121 = 5226^2 + 5011^2 .

It is a cyclic number.

It is not a de Polignac number, because 52421197 - 2³ = 52421189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52421191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26210598 + 26210599.

It is an arithmetic number, because the mean of its divisors is an integer number (26210599).

Almost surely, 2^52421197 is an apocalyptic number.

It is an amenable number.

52421197 is a deficient number, since it is larger than the sum of its proper divisors (1).

52421197 is an equidigital number, since it uses as much as digits as its factorization.

52421197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 31.

The square root of 52421197 is about 7240.2484073407. The cubic root of 52421197 is about 374.2561777328.

The spelling of 52421197 in words is "fifty-two million, four hundred twenty-one thousand, one hundred ninety-seven".