445948553 has 2 divisors, whose sum is σ = 445948554. Its totient is φ = 445948552.

The previous prime is 445948499. The next prime is 445948561. The reversal of 445948553 is 355849544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234304249 + 211644304 = 15307^2 + 14548^2 .

It is a cyclic number.

It is not a de Polignac number, because 445948553 - 2²⁰ = 444899977 is a prime.

It is a super-2 number, since 2×445948553² = 397740223845587618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445948498 and 445948507.

It is not a weakly prime, because it can be changed into another prime (445944553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222974276 + 222974277.

It is an arithmetic number, because the mean of its divisors is an integer number (222974277).

Almost surely, 2^445948553 is an apocalyptic number.

It is an amenable number.

445948553 is a deficient number, since it is larger than the sum of its proper divisors (1).

445948553 is an equidigital number, since it uses as much as digits as its factorization.

445948553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728000, while the sum is 47.

The square root of 445948553 is about 21117.4940037875. The cubic root of 445948553 is about 764.0027462827.

Subtracting from 445948553 its reverse (355849544), we obtain a palindrome (90099009).

The spelling of 445948553 in words is "four hundred forty-five million, nine hundred forty-eight thousand, five hundred fifty-three".