655633045 has 8 divisors (see below), whose sum is σ = 786999096. Its totient is φ = 524346816.

The previous prime is 655633001. The next prime is 655633051. The reversal of 655633045 is 540336556.

It can be written as a sum of positive squares in 4 ways, for example, as 97634161 + 557998884 = 9881^2 + 23622^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 655633045 - 2⁹ = 655632533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655632995 and 655633013.

It is a congruent number.

It is an unprimeable number.

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, 82 + ... + 36211.

It is an arithmetic number, because the mean of its divisors is an integer number (98374887).

Almost surely, 2^655633045 is an apocalyptic number.

It is an amenable number.

655633045 is a deficient number, since it is larger than the sum of its proper divisors (131366051).

655633045 is a wasteful number, since it uses less digits than its factorization.

655633045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39911.

The product of its (nonzero) digits is 162000, while the sum is 37.

The square root of 655633045 is about 25605.3323548045. The cubic root of 655633045 is about 868.7342517719.

It can be divided in two parts, 6556 and 33045, that added together give a square (39601 = 199²).

The spelling of 655633045 in words is "six hundred fifty-five million, six hundred thirty-three thousand, forty-five".