12054551 has 2 divisors, whose sum is σ = 12054552. Its totient is φ = 12054550.

The previous prime is 12054527. The next prime is 12054571. The reversal of 12054551 is 15545021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12054551 - 2⁶ = 12054487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12054521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6027275 + 6027276.

It is an arithmetic number, because the mean of its divisors is an integer number (6027276).

Almost surely, 2^12054551 is an apocalyptic number.

12054551 is a deficient number, since it is larger than the sum of its proper divisors (1).

12054551 is an equidigital number, since it uses as much as digits as its factorization.

12054551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 12054551 is about 3471.9664456904. The cubic root of 12054551 is about 229.2892425172.

Adding to 12054551 its reverse (15545021), we get a palindrome (27599572).

The spelling of 12054551 in words is "twelve million, fifty-four thousand, five hundred fifty-one".