455553623 has 4 divisors (see below), whose sum is σ = 520632720. Its totient is φ = 390474528.

The previous prime is 455553611. The next prime is 455553629. The reversal of 455553623 is 326355554.

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 455553623 - 2⁶ = 455553559 is a prime.

It is a super-2 number, since 2×455553623² = 415058206856852258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455553629) 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, 32539538 + ... + 32539551.

It is an arithmetic number, because the mean of its divisors is an integer number (130158180).

Almost surely, 2^455553623 is an apocalyptic number.

455553623 is a deficient number, since it is larger than the sum of its proper divisors (65079097).

455553623 is an equidigital number, since it uses as much as digits as its factorization.

455553623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65079096.

The product of its digits is 270000, while the sum is 38.

The square root of 455553623 is about 21343.7021858908. The cubic root of 455553623 is about 769.4489918639.

The spelling of 455553623 in words is "four hundred fifty-five million, five hundred fifty-three thousand, six hundred twenty-three".