26996551 has 2 divisors, whose sum is σ = 26996552. Its totient is φ = 26996550.

The previous prime is 26996537. The next prime is 26996617. The reversal of 26996551 is 15569962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26996551 - 2⁷ = 26996423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26996498 and 26996507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26996531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13498275 + 13498276.

It is an arithmetic number, because the mean of its divisors is an integer number (13498276).

Almost surely, 2^26996551 is an apocalyptic number.

26996551 is a deficient number, since it is larger than the sum of its proper divisors (1).

26996551 is an equidigital number, since it uses as much as digits as its factorization.

26996551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 43.

The square root of 26996551 is about 5195.8205319276. The cubic root of 26996551 is about 299.9872253820.

The spelling of 26996551 in words is "twenty-six million, nine hundred ninety-six thousand, five hundred fifty-one".