54880289 has 2 divisors, whose sum is σ = 54880290. Its totient is φ = 54880288.

The previous prime is 54880249. The next prime is 54880291. The reversal of 54880289 is 98208845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40742689 + 14137600 = 6383^2 + 3760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54880289 is a prime.

It is a super-2 number, since 2×54880289² = 6023692241447042, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 54880291, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (54880219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27440144 + 27440145.

It is an arithmetic number, because the mean of its divisors is an integer number (27440145).

Almost surely, 2^54880289 is an apocalyptic number.

It is an amenable number.

54880289 is a deficient number, since it is larger than the sum of its proper divisors (1).

54880289 is an equidigital number, since it uses as much as digits as its factorization.

54880289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 54880289 is about 7408.1231766217. The cubic root of 54880289 is about 380.0191333856.

The spelling of 54880289 in words is "fifty-four million, eight hundred eighty thousand, two hundred eighty-nine".