54942257 has 2 divisors, whose sum is σ = 54942258. Its totient is φ = 54942256.

The previous prime is 54942241. The next prime is 54942271. The reversal of 54942257 is 75224945.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38328481 + 16613776 = 6191^2 + 4076^2 .

It is a cyclic number.

It is not a de Polignac number, because 54942257 - 2⁴ = 54942241 is a prime.

It is a Chen prime.

It is equal to p_3278909 and since 54942257 and 3278909 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54942257.

It is not a weakly prime, because it can be changed into another prime (54942287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27471128 + 27471129.

It is an arithmetic number, because the mean of its divisors is an integer number (27471129).

Almost surely, 2^54942257 is an apocalyptic number.

It is an amenable number.

54942257 is a deficient number, since it is larger than the sum of its proper divisors (1).

54942257 is an equidigital number, since it uses as much as digits as its factorization.

54942257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 54942257 is about 7412.3044324960. The cubic root of 54942257 is about 380.1621122717.

The spelling of 54942257 in words is "fifty-four million, nine hundred forty-two thousand, two hundred fifty-seven".