27426551 has 2 divisors, whose sum is σ = 27426552. Its totient is φ = 27426550.

The previous prime is 27426527. The next prime is 27426613. The reversal of 27426551 is 15562472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27426551 - 2¹⁸ = 27164407 is a prime.

It is equal to p_1707944 and since 27426551 and 1707944 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27426251) 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, 13713275 + 13713276.

It is an arithmetic number, because the mean of its divisors is an integer number (13713276).

Almost surely, 2^27426551 is an apocalyptic number.

27426551 is a deficient number, since it is larger than the sum of its proper divisors (1).

27426551 is an equidigital number, since it uses as much as digits as its factorization.

27426551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 32.

The square root of 27426551 is about 5237.0364711352. The cubic root of 27426551 is about 301.5715713541.

The spelling of 27426551 in words is "twenty-seven million, four hundred twenty-six thousand, five hundred fifty-one".