544216457 has 2 divisors, whose sum is σ = 544216458. Its totient is φ = 544216456.

The previous prime is 544216433. The next prime is 544216459. The reversal of 544216457 is 754612445.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487349776 + 56866681 = 22076^2 + 7541^2 .

It is a cyclic number.

It is not a de Polignac number, because 544216457 - 2⁸ = 544216201 is a prime.

Together with 544216459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 544216457.

It is not a weakly prime, because it can be changed into another prime (544216459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272108228 + 272108229.

It is an arithmetic number, because the mean of its divisors is an integer number (272108229).

Almost surely, 2^544216457 is an apocalyptic number.

It is an amenable number.

544216457 is a deficient number, since it is larger than the sum of its proper divisors (1).

544216457 is an equidigital number, since it uses as much as digits as its factorization.

544216457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 38.

The square root of 544216457 is about 23328.4473765401. The cubic root of 544216457 is about 816.4392784304.

The spelling of 544216457 in words is "five hundred forty-four million, two hundred sixteen thousand, four hundred fifty-seven".