26271551 has 2 divisors, whose sum is σ = 26271552. Its totient is φ = 26271550.

The previous prime is 26271527. The next prime is 26271563. The reversal of 26271551 is 15517262.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26271551 - 2²² = 22077247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26271521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13135775 + 13135776.

It is an arithmetic number, because the mean of its divisors is an integer number (13135776).

Almost surely, 2^26271551 is an apocalyptic number.

26271551 is a deficient number, since it is larger than the sum of its proper divisors (1).

26271551 is an equidigital number, since it uses as much as digits as its factorization.

26271551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 29.

The square root of 26271551 is about 5125.5781137351. The cubic root of 26271551 is about 297.2774071127.

The spelling of 26271551 in words is "twenty-six million, two hundred seventy-one thousand, five hundred fifty-one".