450140553 has 12 divisors (see below), whose sum is σ = 671177728. Its totient is φ = 290413080.

The previous prime is 450140527. The next prime is 450140617. The reversal of 450140553 is 355041054.

It is a de Polignac number, because none of the positive numbers 2^k-450140553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450150553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 806425 + ... + 806982.

Almost surely, 2^450140553 is an apocalyptic number.

It is an amenable number.

450140553 is a deficient number, since it is larger than the sum of its proper divisors (221037175).

450140553 is a wasteful number, since it uses less digits than its factorization.

450140553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613444 (or 1613441 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 450140553 is about 21216.5160429322. The cubic root of 450140553 is about 766.3892071179.

It can be divided in two parts, 4501 and 40553, that added together give a palindrome (45054).

The spelling of 450140553 in words is "four hundred fifty million, one hundred forty thousand, five hundred fifty-three".