455505553 has 4 divisors (see below), whose sum is σ = 456306660. Its totient is φ = 454704448.

The previous prime is 455505539. The next prime is 455505571. The reversal of 455505553 is 355505554.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46131264 + 409374289 = 6792^2 + 20233^2 .

It is a cyclic number.

It is not a de Polignac number, because 455505553 - 2¹⁷ = 455374481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455505053) 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, 399700 + ... + 400837.

It is an arithmetic number, because the mean of its divisors is an integer number (114076665).

Almost surely, 2^455505553 is an apocalyptic number.

It is an amenable number.

455505553 is a deficient number, since it is larger than the sum of its proper divisors (801107).

455505553 is an equidigital number, since it uses as much as digits as its factorization.

455505553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801106.

The product of its (nonzero) digits is 187500, while the sum is 37.

The square root of 455505553 is about 21342.5760628843. The cubic root of 455505553 is about 769.4219268363.

Subtracting from 455505553 its reverse (355505554), we obtain a palindrome (99999999).

The spelling of 455505553 in words is "four hundred fifty-five million, five hundred five thousand, five hundred fifty-three".