450678553 has 12 divisors (see below), whose sum is σ = 496024428. Its totient is φ = 409181760.

The previous prime is 450678523. The next prime is 450678559. The reversal of 450678553 is 355876054.

It can be written as a sum of positive squares in 6 ways, for example, as 46949904 + 403728649 = 6852^2 + 20093^2 .

It is not a de Polignac number, because 450678553 - 2¹³ = 450670361 is a prime.

It is a super-2 number, since 2×450678553² = 406222316268347618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (450678559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11550 + ... + 32167.

It is an arithmetic number, because the mean of its divisors is an integer number (41335369).

Almost surely, 2^450678553 is an apocalyptic number.

It is an amenable number.

450678553 is a deficient number, since it is larger than the sum of its proper divisors (45345875).

450678553 is a wasteful number, since it uses less digits than its factorization.

450678553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43804 (or 43791 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 450678553 is about 21229.1910585401. The cubic root of 450678553 is about 766.6944104852.

The spelling of 450678553 in words is "four hundred fifty million, six hundred seventy-eight thousand, five hundred fifty-three".