655606001 has 8 divisors (see below), whose sum is σ = 690463200. Its totient is φ = 620784000.

The previous prime is 655605971. The next prime is 655606009. The reversal of 655606001 is 100606556.

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 655606001 - 2²² = 651411697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655606009) 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, 35105 + ... + 50433.

It is an arithmetic number, because the mean of its divisors is an integer number (86307900).

Almost surely, 2^655606001 is an apocalyptic number.

It is an amenable number.

655606001 is a deficient number, since it is larger than the sum of its proper divisors (34857199).

655606001 is a wasteful number, since it uses less digits than its factorization.

655606001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17599.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 655606001 is about 25604.8042562329. The cubic root of 655606001 is about 868.7223068929.

The spelling of 655606001 in words is "six hundred fifty-five million, six hundred six thousand, one".