655533601 has 8 divisors (see below), whose sum is σ = 667627200. Its totient is φ = 643472880.

The previous prime is 655533589. The next prime is 655533607. The reversal of 655533601 is 106335556.

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

It is not a de Polignac number, because 655533601 - 2⁹ = 655533089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655533607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33996 + ... + 49666.

It is an arithmetic number, because the mean of its divisors is an integer number (83453400).

Almost surely, 2^655533601 is an apocalyptic number.

It is an amenable number.

655533601 is a deficient number, since it is larger than the sum of its proper divisors (12093599).

655533601 is a wasteful number, since it uses less digits than its factorization.

655533601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16439.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 655533601 is about 25603.3904200205. The cubic root of 655533601 is about 868.6903274162.

The spelling of 655533601 in words is "six hundred fifty-five million, five hundred thirty-three thousand, six hundred one".