545223253777 has 2 divisors, whose sum is σ = 545223253778. Its totient is φ = 545223253776.

The previous prime is 545223253769. The next prime is 545223253867. The reversal of 545223253777 is 777352322545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455896390401 + 89326863376 = 675201^2 + 298876^2 .

It is a cyclic number.

It is not a de Polignac number, because 545223253777 - 2³ = 545223253769 is a prime.

It is not a weakly prime, because it can be changed into another prime (545223233777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272611626888 + 272611626889.

It is an arithmetic number, because the mean of its divisors is an integer number (272611626889).

Almost surely, 2^545223253777 is an apocalyptic number.

It is an amenable number.

545223253777 is a deficient number, since it is larger than the sum of its proper divisors (1).

545223253777 is an equidigital number, since it uses as much as digits as its factorization.

545223253777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348000, while the sum is 52.

The spelling of 545223253777 in words is "five hundred forty-five billion, two hundred twenty-three million, two hundred fifty-three thousand, seven hundred seventy-seven".