54247471 has 2 divisors, whose sum is σ = 54247472. Its totient is φ = 54247470.

The previous prime is 54247463. The next prime is 54247477. The reversal of 54247471 is 17474245.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54247471 - 2³ = 54247463 is a prime.

It is a super-3 number, since 3×54247471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54247477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27123735 + 27123736.

It is an arithmetic number, because the mean of its divisors is an integer number (27123736).

Almost surely, 2^54247471 is an apocalyptic number.

54247471 is a deficient number, since it is larger than the sum of its proper divisors (1).

54247471 is an equidigital number, since it uses as much as digits as its factorization.

54247471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 34.

The square root of 54247471 is about 7365.2882496206. The cubic root of 54247471 is about 378.5528313297.

The spelling of 54247471 in words is "fifty-four million, two hundred forty-seven thousand, four hundred seventy-one".