455523649 has 9 divisors (see below), whose sum is σ = 530068707. Its totient is φ = 390320784.

The previous prime is 455523647. The next prime is 455523683. The reversal of 455523649 is 946325554.

The square root of 455523649 is 21343.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49098049 + 406425600 = 7007^2 + 20160^2 .

It is not a de Polignac number, because 455523649 - 2¹ = 455523647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (455523647) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 147877 + ... + 150925.

It is an arithmetic number, because the mean of its divisors is an integer number (58896523).

Almost surely, 2^455523649 is an apocalyptic number.

455523649 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

455523649 is the 21343-rd square number.

455523649 is the 10672-nd centered octagonal number.

It is an amenable number.

455523649 is a deficient number, since it is larger than the sum of its proper divisors (74545058).

455523649 is an frugal number, since it uses more digits than its factorization.

455523649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112 (or 3056 counting only the distinct ones).

The product of its digits is 648000, while the sum is 43.

The cubic root of 455523649 is about 769.4321157167.

The spelling of 455523649 in words is "four hundred fifty-five million, five hundred twenty-three thousand, six hundred forty-nine".