54120551 has 2 divisors, whose sum is σ = 54120552. Its totient is φ = 54120550.

The previous prime is 54120527. The next prime is 54120553. The reversal of 54120551 is 15502145.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54120551 - 2⁶ = 54120487 is a prime.

Together with 54120553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54120553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27060275 + 27060276.

It is an arithmetic number, because the mean of its divisors is an integer number (27060276).

Almost surely, 2^54120551 is an apocalyptic number.

54120551 is a deficient number, since it is larger than the sum of its proper divisors (1).

54120551 is an equidigital number, since it uses as much as digits as its factorization.

54120551 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 54120551 is about 7356.6671122187. The cubic root of 54120551 is about 378.2573739659.

Adding to 54120551 its reverse (15502145), we get a palindrome (69622696).

The spelling of 54120551 in words is "fifty-four million, one hundred twenty thousand, five hundred fifty-one".