526204397 has 2 divisors, whose sum is σ = 526204398. Its totient is φ = 526204396.

The previous prime is 526204381. The next prime is 526204409. The reversal of 526204397 is 793402625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462508036 + 63696361 = 21506^2 + 7981^2 .

It is a cyclic number.

It is not a de Polignac number, because 526204397 - 2⁴ = 526204381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 526204397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (526204597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263102198 + 263102199.

It is an arithmetic number, because the mean of its divisors is an integer number (263102199).

Almost surely, 2^526204397 is an apocalyptic number.

It is an amenable number.

526204397 is a deficient number, since it is larger than the sum of its proper divisors (1).

526204397 is an equidigital number, since it uses as much as digits as its factorization.

526204397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 526204397 is about 22939.1455159080. The cubic root of 526204397 is about 807.3307435034.

The spelling of 526204397 in words is "five hundred twenty-six million, two hundred four thousand, three hundred ninety-seven".