52002397 has 2 divisors, whose sum is σ = 52002398. Its totient is φ = 52002396.

The previous prime is 52002383. The next prime is 52002403. The reversal of 52002397 is 79320025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48358116 + 3644281 = 6954^2 + 1909^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52002397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52002367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26001198 + 26001199.

It is an arithmetic number, because the mean of its divisors is an integer number (26001199).

Almost surely, 2^52002397 is an apocalyptic number.

It is an amenable number.

52002397 is a deficient number, since it is larger than the sum of its proper divisors (1).

52002397 is an equidigital number, since it uses as much as digits as its factorization.

52002397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 52002397 is about 7211.2687510590. The cubic root of 52002397 is about 373.2568507406.

The spelling of 52002397 in words is "fifty-two million, two thousand, three hundred ninety-seven".