54897019 has 2 divisors, whose sum is σ = 54897020. Its totient is φ = 54897018.

The previous prime is 54896981. The next prime is 54897041. The reversal of 54897019 is 91079845.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54897019 is a prime.

It is a super-2 number, since 2×54897019² = 6027365390172722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54897049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27448509 + 27448510.

It is an arithmetic number, because the mean of its divisors is an integer number (27448510).

Almost surely, 2^54897019 is an apocalyptic number.

54897019 is a deficient number, since it is larger than the sum of its proper divisors (1).

54897019 is an equidigital number, since it uses as much as digits as its factorization.

54897019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 54897019 is about 7409.2522564696. The cubic root of 54897019 is about 380.0577451488.

The spelling of 54897019 in words is "fifty-four million, eight hundred ninety-seven thousand, nineteen".