450052551 has 16 divisors (see below), whose sum is σ = 718033120. Its totient is φ = 276955200.

The previous prime is 450052541. The next prime is 450052583. The reversal of 450052551 is 155250054.

It is not a de Polignac number, because 450052551 - 2²² = 445858247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450052541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640750 + ... + 641451.

It is an arithmetic number, because the mean of its divisors is an integer number (44877070).

Almost surely, 2^450052551 is an apocalyptic number.

450052551 is a deficient number, since it is larger than the sum of its proper divisors (267980569).

450052551 is a wasteful number, since it uses less digits than its factorization.

450052551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282223 (or 1282217 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 450052551 is about 21214.4420383851. The cubic root of 450052551 is about 766.3392611043.

The spelling of 450052551 in words is "four hundred fifty million, fifty-two thousand, five hundred fifty-one".