26250569 has 2 divisors, whose sum is σ = 26250570. Its totient is φ = 26250568.

The previous prime is 26250559. The next prime is 26250589. The reversal of 26250569 is 96505262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19254544 + 6996025 = 4388^2 + 2645^2 .

It is a cyclic number.

It is not a de Polignac number, because 26250569 - 2²⁰ = 25201993 is a prime.

It is a super-2 number, since 2×26250569² = 1378184745647522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26250559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125284 + 13125285.

It is an arithmetic number, because the mean of its divisors is an integer number (13125285).

Almost surely, 2^26250569 is an apocalyptic number.

It is an amenable number.

26250569 is a deficient number, since it is larger than the sum of its proper divisors (1).

26250569 is an equidigital number, since it uses as much as digits as its factorization.

26250569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 26250569 is about 5123.5309113930. The cubic root of 26250569 is about 297.1982449824.

The spelling of 26250569 in words is "twenty-six million, two hundred fifty thousand, five hundred sixty-nine".