545006401 has 2 divisors, whose sum is σ = 545006402. Its totient is φ = 545006400.

The previous prime is 545006359. The next prime is 545006419. The reversal of 545006401 is 104600545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474194176 + 70812225 = 21776^2 + 8415^2 .

It is a cyclic number.

It is not a de Polignac number, because 545006401 - 2²⁹ = 8135489 is a prime.

It is not a weakly prime, because it can be changed into another prime (545006461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272503200 + 272503201.

It is an arithmetic number, because the mean of its divisors is an integer number (272503201).

Almost surely, 2^545006401 is an apocalyptic number.

It is an amenable number.

545006401 is a deficient number, since it is larger than the sum of its proper divisors (1).

545006401 is an equidigital number, since it uses as much as digits as its factorization.

545006401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 545006401 is about 23345.3721538124. The cubic root of 545006401 is about 816.8341148984.

Adding to 545006401 its reverse (104600545), we get a palindrome (649606946).

The spelling of 545006401 in words is "five hundred forty-five million, six thousand, four hundred one".