445247250251 has 2 divisors, whose sum is σ = 445247250252. Its totient is φ = 445247250250.

The previous prime is 445247250221. The next prime is 445247250293. The reversal of 445247250251 is 152052742544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445247250251 - 2²⁶ = 445180141387 is a prime.

It is a super-2 number, since 2×445247250251² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445247250199 and 445247250208.

It is not a weakly prime, because it can be changed into another prime (445247250221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222623625125 + 222623625126.

It is an arithmetic number, because the mean of its divisors is an integer number (222623625126).

Almost surely, 2^445247250251 is an apocalyptic number.

445247250251 is a deficient number, since it is larger than the sum of its proper divisors (1).

445247250251 is an equidigital number, since it uses as much as digits as its factorization.

445247250251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448000, while the sum is 41.

Adding to 445247250251 its reverse (152052742544), we get a palindrome (597299992795).

The spelling of 445247250251 in words is "four hundred forty-five billion, two hundred forty-seven million, two hundred fifty thousand, two hundred fifty-one".