26455969 has 2 divisors, whose sum is σ = 26455970. Its totient is φ = 26455968.

The previous prime is 26455967. The next prime is 26455981. The reversal of 26455969 is 96955462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22212369 + 4243600 = 4713^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 26455969 - 2¹ = 26455967 is a prime.

It is a super-2 number, since 2×26455969² = 1399836591457922, which contains 22 as substring.

Together with 26455967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26455963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13227984 + 13227985.

It is an arithmetic number, because the mean of its divisors is an integer number (13227985).

Almost surely, 2^26455969 is an apocalyptic number.

It is an amenable number.

26455969 is a deficient number, since it is larger than the sum of its proper divisors (1).

26455969 is an equidigital number, since it uses as much as digits as its factorization.

26455969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 46.

The square root of 26455969 is about 5143.5366237638. The cubic root of 26455969 is about 297.9713836762.

It can be divided in two parts, 264559 and 69, that added together give a triangular number (264628 = T₇₂₇).

The spelling of 26455969 in words is "twenty-six million, four hundred fifty-five thousand, nine hundred sixty-nine".