450550403 has 4 divisors (see below), whose sum is σ = 459051408. Its totient is φ = 442049400.

The previous prime is 450550391. The next prime is 450550423. The reversal of 450550403 is 304055054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304055054 = 2 ⋅152027527.

It is a cyclic number.

It is not a de Polignac number, because 450550403 - 2²⁴ = 433773187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450550423) 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, 4250423 + ... + 4250528.

It is an arithmetic number, because the mean of its divisors is an integer number (114762852).

Almost surely, 2^450550403 is an apocalyptic number.

450550403 is a deficient number, since it is larger than the sum of its proper divisors (8501005).

450550403 is an equidigital number, since it uses as much as digits as its factorization.

450550403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501004.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 450550403 is about 21226.1725942290. The cubic root of 450550403 is about 766.6217339976.

The spelling of 450550403 in words is "four hundred fifty million, five hundred fifty thousand, four hundred three".