54210647 has 2 divisors, whose sum is σ = 54210648. Its totient is φ = 54210646.

The previous prime is 54210643. The next prime is 54210649. The reversal of 54210647 is 74601245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54210647 - 2² = 54210643 is a prime.

Together with 54210649, 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 (54210641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27105323 + 27105324.

It is an arithmetic number, because the mean of its divisors is an integer number (27105324).

Almost surely, 2^54210647 is an apocalyptic number.

54210647 is a deficient number, since it is larger than the sum of its proper divisors (1).

54210647 is an equidigital number, since it uses as much as digits as its factorization.

54210647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 54210647 is about 7362.7879909719. The cubic root of 54210647 is about 378.4671561540.

The spelling of 54210647 in words is "fifty-four million, two hundred ten thousand, six hundred forty-seven".