26056397 has 2 divisors, whose sum is σ = 26056398. Its totient is φ = 26056396.

The previous prime is 26056369. The next prime is 26056417. The reversal of 26056397 is 79365062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22600516 + 3455881 = 4754^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 26056397 - 2⁸ = 26056141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26056397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26056357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13028198 + 13028199.

It is an arithmetic number, because the mean of its divisors is an integer number (13028199).

Almost surely, 2^26056397 is an apocalyptic number.

It is an amenable number.

26056397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26056397 is an equidigital number, since it uses as much as digits as its factorization.

26056397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 26056397 is about 5104.5466987775. The cubic root of 26056397 is about 296.4636520123.

The spelling of 26056397 in words is "twenty-six million, fifty-six thousand, three hundred ninety-seven".