14555551 has 2 divisors, whose sum is σ = 14555552. Its totient is φ = 14555550.

The previous prime is 14555521. The next prime is 14555561. The reversal of 14555551 is 15555541.

It is a strong prime.

It is an emirp because it is prime and its reverse (15555541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14555551 - 2⁷ = 14555423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14555521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7277775 + 7277776.

It is an arithmetic number, because the mean of its divisors is an integer number (7277776).

Almost surely, 2^14555551 is an apocalyptic number.

14555551 is a deficient number, since it is larger than the sum of its proper divisors (1).

14555551 is an equidigital number, since it uses as much as digits as its factorization.

14555551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12500, while the sum is 31.

The square root of 14555551 is about 3815.1737837220. The cubic root of 14555551 is about 244.1609560155.

It can be divided in two parts, 145 and 55551, that added together give a square (55696 = 236²).

The spelling of 14555551 in words is "fourteen million, five hundred fifty-five thousand, five hundred fifty-one".