485808251 has 2 divisors, whose sum is σ = 485808252. Its totient is φ = 485808250.

The previous prime is 485808233. The next prime is 485808259. The reversal of 485808251 is 152808584.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485808251 is a prime.

It is a super-3 number, since 3×485808251³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 485808199 and 485808208.

It is not a weakly prime, because it can be changed into another prime (485808259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242904125 + 242904126.

It is an arithmetic number, because the mean of its divisors is an integer number (242904126).

Almost surely, 2^485808251 is an apocalyptic number.

485808251 is a deficient number, since it is larger than the sum of its proper divisors (1).

485808251 is an equidigital number, since it uses as much as digits as its factorization.

485808251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 485808251 is about 22041.0583003630. The cubic root of 485808251 is about 786.1190045496.

The spelling of 485808251 in words is "four hundred eighty-five million, eight hundred eight thousand, two hundred fifty-one".