450685507 has 4 divisors (see below), whose sum is σ = 458073856. Its totient is φ = 443297160.

The previous prime is 450685481. The next prime is 450685513. The reversal of 450685507 is 705586054.

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

It is a cyclic number.

It is not a de Polignac number, because 450685507 - 2¹⁵ = 450652739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450685507.

It is not an unprimeable number, because it can be changed into a prime (450685597) 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, 3694083 + ... + 3694204.

It is an arithmetic number, because the mean of its divisors is an integer number (114518464).

Almost surely, 2^450685507 is an apocalyptic number.

450685507 is a deficient number, since it is larger than the sum of its proper divisors (7388349).

450685507 is an equidigital number, since it uses as much as digits as its factorization.

450685507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7388348.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 450685507 is about 21229.3548418222. The cubic root of 450685507 is about 766.6983538468.

The spelling of 450685507 in words is "four hundred fifty million, six hundred eighty-five thousand, five hundred seven".