54051971 has 2 divisors, whose sum is σ = 54051972. Its totient is φ = 54051970.

The previous prime is 54051961. The next prime is 54051973. The reversal of 54051971 is 17915045.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54051971 - 2¹⁰ = 54050947 is a prime.

Together with 54051973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54051973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27025985 + 27025986.

It is an arithmetic number, because the mean of its divisors is an integer number (27025986).

Almost surely, 2^54051971 is an apocalyptic number.

54051971 is a deficient number, since it is larger than the sum of its proper divisors (1).

54051971 is an equidigital number, since it uses as much as digits as its factorization.

54051971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 54051971 is about 7352.0045565818. The cubic root of 54051971 is about 378.0975341569.

The spelling of 54051971 in words is "fifty-four million, fifty-one thousand, nine hundred seventy-one".