655553553 has 8 divisors (see below), whose sum is σ = 880954368. Its totient is φ = 433594224.

The previous prime is 655553539. The next prime is 655553593. The reversal of 655553553 is 355355556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 655553553 - 2¹⁰ = 655552529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655553513) 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 7 ways as a sum of consecutive naturals, for example, 859926 + ... + 860687.

It is an arithmetic number, because the mean of its divisors is an integer number (110119296).

Almost surely, 2^655553553 is an apocalyptic number.

It is an amenable number.

655553553 is a deficient number, since it is larger than the sum of its proper divisors (225400815).

655553553 is a wasteful number, since it uses less digits than its factorization.

655553553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720743.

The product of its digits is 843750, while the sum is 42.

The square root of 655553553 is about 25603.7800529531. The cubic root of 655553553 is about 868.6991405590.

The spelling of 655553553 in words is "six hundred fifty-five million, five hundred fifty-three thousand, five hundred fifty-three".