26250869 has 2 divisors, whose sum is σ = 26250870. Its totient is φ = 26250868.

The previous prime is 26250859. The next prime is 26250881. The reversal of 26250869 is 96805262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24373969 + 1876900 = 4937^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 26250869 - 2¹⁶ = 26185333 is a prime.

It is a super-2 number, since 2×26250869² = 1378216246510322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26250859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125434 + 13125435.

It is an arithmetic number, because the mean of its divisors is an integer number (13125435).

Almost surely, 2^26250869 is an apocalyptic number.

It is an amenable number.

26250869 is a deficient number, since it is larger than the sum of its proper divisors (1).

26250869 is an equidigital number, since it uses as much as digits as its factorization.

26250869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 26250869 is about 5123.5601879943. The cubic root of 26250869 is about 297.1993771373.

The spelling of 26250869 in words is "twenty-six million, two hundred fifty thousand, eight hundred sixty-nine".