450513855 has 144 divisors (see below), whose sum is σ = 944116992. Its totient is φ = 197683200.

The previous prime is 450513851. The next prime is 450513871. The reversal of 450513855 is 558315054.

It is a happy number.

It is not a de Polignac number, because 450513855 - 2² = 450513851 is a prime.

It is a super-2 number, since 2×450513855² = 405925467093922050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450513851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2869437 + ... + 2869593.

It is an arithmetic number, because the mean of its divisors is an integer number (6556368).

Almost surely, 2^450513855 is an apocalyptic number.

450513855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

450513855 is an abundant number, since it is smaller than the sum of its proper divisors (493603137).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450513855 is a wasteful number, since it uses less digits than its factorization.

450513855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 450513855 is about 21225.3116584893. The cubic root of 450513855 is about 766.6010043533.

The spelling of 450513855 in words is "four hundred fifty million, five hundred thirteen thousand, eight hundred fifty-five".