26250689 has 2 divisors, whose sum is σ = 26250690. Its totient is φ = 26250688.

The previous prime is 26250643. The next prime is 26250709. The reversal of 26250689 is 98605262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16265089 + 9985600 = 4033^2 + 3160^2 .

It is a cyclic number.

It is not a de Polignac number, because 26250689 - 2¹² = 26246593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26250629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125344 + 13125345.

It is an arithmetic number, because the mean of its divisors is an integer number (13125345).

Almost surely, 2^26250689 is an apocalyptic number.

It is an amenable number.

26250689 is a deficient number, since it is larger than the sum of its proper divisors (1).

26250689 is an equidigital number, since it uses as much as digits as its factorization.

26250689 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 26250689 is about 5123.5426220536. The cubic root of 26250689 is about 297.1986978454.

The spelling of 26250689 in words is "twenty-six million, two hundred fifty thousand, six hundred eighty-nine".