54497147 has 2 divisors, whose sum is σ = 54497148. Its totient is φ = 54497146.

The previous prime is 54497141. The next prime is 54497161. The reversal of 54497147 is 74179445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54497147 - 2⁶ = 54497083 is a prime.

It is a super-2 number, since 2×54497147² = 5939878062279218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54497141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27248573 + 27248574.

It is an arithmetic number, because the mean of its divisors is an integer number (27248574).

Almost surely, 2^54497147 is an apocalyptic number.

54497147 is a deficient number, since it is larger than the sum of its proper divisors (1).

54497147 is an equidigital number, since it uses as much as digits as its factorization.

54497147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 54497147 is about 7382.2182980456. The cubic root of 54497147 is about 379.1327104210.

The spelling of 54497147 in words is "fifty-four million, four hundred ninety-seven thousand, one hundred forty-seven".