52500397 has 2 divisors, whose sum is σ = 52500398. Its totient is φ = 52500396.

The previous prime is 52500389. The next prime is 52500431. The reversal of 52500397 is 79300525.

It is a happy number.

52500397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41550916 + 10949481 = 6446^2 + 3309^2 .

It is a cyclic number.

It is not a de Polignac number, because 52500397 - 2³ = 52500389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52500337) 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 as a sum of consecutive naturals, namely, 26250198 + 26250199.

It is an arithmetic number, because the mean of its divisors is an integer number (26250199).

Almost surely, 2^52500397 is an apocalyptic number.

It is an amenable number.

52500397 is a deficient number, since it is larger than the sum of its proper divisors (1).

52500397 is an equidigital number, since it uses as much as digits as its factorization.

52500397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 52500397 is about 7245.7157686456. The cubic root of 52500397 is about 374.4445631942. Note that the first 3 decimals are identical.

The spelling of 52500397 in words is "fifty-two million, five hundred thousand, three hundred ninety-seven".