26525861 has 2 divisors, whose sum is σ = 26525862. Its totient is φ = 26525860.

The previous prime is 26525857. The next prime is 26525867. The reversal of 26525861 is 16852562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15760900 + 10764961 = 3970^2 + 3281^2 .

It is a cyclic number.

It is not a de Polignac number, because 26525861 - 2² = 26525857 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26525867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13262930 + 13262931.

It is an arithmetic number, because the mean of its divisors is an integer number (13262931).

Almost surely, 2^26525861 is an apocalyptic number.

It is an amenable number.

26525861 is a deficient number, since it is larger than the sum of its proper divisors (1).

26525861 is an equidigital number, since it uses as much as digits as its factorization.

26525861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 26525861 is about 5150.3263003425. The cubic root of 26525861 is about 298.2335488790.

The spelling of 26525861 in words is "twenty-six million, five hundred twenty-five thousand, eight hundred sixty-one".