450254441531 has 4 divisors (see below), whose sum is σ = 452122717464. Its totient is φ = 448386165600.

The previous prime is 450254441521. The next prime is 450254441543. The reversal of 450254441531 is 135144452054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450254441531 is a prime.

It is a super-2 number, since 2×450254441531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450254441521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934137605 + ... + 934138086.

It is an arithmetic number, because the mean of its divisors is an integer number (113030679366).

Almost surely, 2^450254441531 is an apocalyptic number.

450254441531 is a deficient number, since it is larger than the sum of its proper divisors (1868275933).

450254441531 is a wasteful number, since it uses less digits than its factorization.

450254441531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868275932.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 450254441531 its reverse (135144452054), we get a palindrome (585398893585).

The spelling of 450254441531 in words is "four hundred fifty billion, two hundred fifty-four million, four hundred forty-one thousand, five hundred thirty-one".