544225993 has 2 divisors, whose sum is σ = 544225994. Its totient is φ = 544225992.

The previous prime is 544225951. The next prime is 544226003. The reversal of 544225993 is 399522445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421193529 + 123032464 = 20523^2 + 11092^2 .

It is a cyclic number.

It is not a de Polignac number, because 544225993 - 2⁹ = 544225481 is a prime.

It is not a weakly prime, because it can be changed into another prime (544225093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272112996 + 272112997.

It is an arithmetic number, because the mean of its divisors is an integer number (272112997).

Almost surely, 2^544225993 is an apocalyptic number.

It is an amenable number.

544225993 is a deficient number, since it is larger than the sum of its proper divisors (1).

544225993 is an equidigital number, since it uses as much as digits as its factorization.

544225993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 43.

The square root of 544225993 is about 23328.6517612999. The cubic root of 544225993 is about 816.4440470718. Note that the first 3 decimals are identical.

The spelling of 544225993 in words is "five hundred forty-four million, two hundred twenty-five thousand, nine hundred ninety-three".