441553457 has 2 divisors, whose sum is σ = 441553458. Its totient is φ = 441553456.

The previous prime is 441553403. The next prime is 441553487. The reversal of 441553457 is 754355144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 341473441 + 100080016 = 18479^2 + 10004^2 .

It is a cyclic number.

It is not a de Polignac number, because 441553457 - 2⁸ = 441553201 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 441553457.

It is not a weakly prime, because it can be changed into another prime (441553487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220776728 + 220776729.

It is an arithmetic number, because the mean of its divisors is an integer number (220776729).

Almost surely, 2^441553457 is an apocalyptic number.

It is an amenable number.

441553457 is a deficient number, since it is larger than the sum of its proper divisors (1).

441553457 is an equidigital number, since it uses as much as digits as its factorization.

441553457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 38.

The square root of 441553457 is about 21013.1734157409. The cubic root of 441553457 is about 761.4845503575.

The spelling of 441553457 in words is "four hundred forty-one million, five hundred fifty-three thousand, four hundred fifty-seven".