545465857 has 2 divisors, whose sum is σ = 545465858. Its totient is φ = 545465856.

The previous prime is 545465839. The next prime is 545465867. The reversal of 545465857 is 758564545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485805681 + 59660176 = 22041^2 + 7724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545465857 is a prime.

It is a super-3 number, since 3×545465857³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 545465857.

It is not a weakly prime, because it can be changed into another prime (545465867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272732928 + 272732929.

It is an arithmetic number, because the mean of its divisors is an integer number (272732929).

Almost surely, 2^545465857 is an apocalyptic number.

It is an amenable number.

545465857 is a deficient number, since it is larger than the sum of its proper divisors (1).

545465857 is an equidigital number, since it uses as much as digits as its factorization.

545465857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360000, while the sum is 49.

The square root of 545465857 is about 23355.2104893105. The cubic root of 545465857 is about 817.0635886080.

The spelling of 545465857 in words is "five hundred forty-five million, four hundred sixty-five thousand, eight hundred fifty-seven".