54890291 has 2 divisors, whose sum is σ = 54890292. Its totient is φ = 54890290.

The previous prime is 54890281. The next prime is 54890293. The reversal of 54890291 is 19209845.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54890291 is a prime.

Together with 54890293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54890293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27445145 + 27445146.

It is an arithmetic number, because the mean of its divisors is an integer number (27445146).

Almost surely, 2^54890291 is an apocalyptic number.

54890291 is a deficient number, since it is larger than the sum of its proper divisors (1).

54890291 is an equidigital number, since it uses as much as digits as its factorization.

54890291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 54890291 is about 7408.7982156352. The cubic root of 54890291 is about 380.0422183010.

The spelling of 54890291 in words is "fifty-four million, eight hundred ninety thousand, two hundred ninety-one".