485641853 has 2 divisors, whose sum is σ = 485641854. Its totient is φ = 485641852.

The previous prime is 485641837. The next prime is 485641879. The reversal of 485641853 is 358146584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482812729 + 2829124 = 21973^2 + 1682^2 .

It is a cyclic number.

It is not a de Polignac number, because 485641853 - 2⁴ = 485641837 is a prime.

It is a Chen prime.

It is equal to p_25638497 and since 485641853 and 25638497 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485641813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242820926 + 242820927.

It is an arithmetic number, because the mean of its divisors is an integer number (242820927).

Almost surely, 2^485641853 is an apocalyptic number.

It is an amenable number.

485641853 is a deficient number, since it is larger than the sum of its proper divisors (1).

485641853 is an equidigital number, since it uses as much as digits as its factorization.

485641853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 44.

The square root of 485641853 is about 22037.2832490759. The cubic root of 485641853 is about 786.0292410352.

The spelling of 485641853 in words is "four hundred eighty-five million, six hundred forty-one thousand, eight hundred fifty-three".