450115553 has 4 divisors (see below), whose sum is σ = 451776768. Its totient is φ = 448454340.

The previous prime is 450115541. The next prime is 450115577. The reversal of 450115553 is 355511054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 450115553 - 2⁴ = 450115537 is a prime.

It is a super-2 number, since 2×450115553² = 405208022104991618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450111553) 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, 830201 + ... + 830742.

It is an arithmetic number, because the mean of its divisors is an integer number (112944192).

Almost surely, 2^450115553 is an apocalyptic number.

It is an amenable number.

450115553 is a deficient number, since it is larger than the sum of its proper divisors (1661215).

450115553 is a wasteful number, since it uses less digits than its factorization.

450115553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661214.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 450115553 is about 21215.9268711032. The cubic root of 450115553 is about 766.3750188940.

The spelling of 450115553 in words is "four hundred fifty million, one hundred fifteen thousand, five hundred fifty-three".