445532497 has 2 divisors, whose sum is σ = 445532498. Its totient is φ = 445532496.

The previous prime is 445532489. The next prime is 445532509. The reversal of 445532497 is 794235544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301508496 + 144024001 = 17364^2 + 12001^2 .

It is a cyclic number.

It is not a de Polignac number, because 445532497 - 2³ = 445532489 is a prime.

It is not a weakly prime, because it can be changed into another prime (445532407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222766248 + 222766249.

It is an arithmetic number, because the mean of its divisors is an integer number (222766249).

Almost surely, 2^445532497 is an apocalyptic number.

It is an amenable number.

445532497 is a deficient number, since it is larger than the sum of its proper divisors (1).

445532497 is an equidigital number, since it uses as much as digits as its factorization.

445532497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The square root of 445532497 is about 21107.6407255761. The cubic root of 445532497 is about 763.7650754951.

The spelling of 445532497 in words is "four hundred forty-five million, five hundred thirty-two thousand, four hundred ninety-seven".