475255553 has 4 divisors (see below), whose sum is σ = 503211780. Its totient is φ = 447299328.

The previous prime is 475255523. The next prime is 475255579. The reversal of 475255553 is 355552574.

It is a happy number.

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 130484929 + 344770624 = 11423^2 + 18568^2 .

It is a cyclic number.

It is not a de Polignac number, because 475255553 - 2⁶ = 475255489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475255553.

It is not an unprimeable number, because it can be changed into a prime (475255523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13978088 + ... + 13978121.

It is an arithmetic number, because the mean of its divisors is an integer number (125802945).

Almost surely, 2^475255553 is an apocalyptic number.

It is an amenable number.

475255553 is a deficient number, since it is larger than the sum of its proper divisors (27956227).

475255553 is a wasteful number, since it uses less digits than its factorization.

475255553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27956226.

The product of its digits is 525000, while the sum is 41.

The square root of 475255553 is about 21800.3567172650. The cubic root of 475255553 is about 780.3852759144.

The spelling of 475255553 in words is "four hundred seventy-five million, two hundred fifty-five thousand, five hundred fifty-three".