655672553 has 8 divisors (see below), whose sum is σ = 662472096. Its totient is φ = 648907200.

The previous prime is 655672529. The next prime is 655672579. The reversal of 655672553 is 355276556.

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 655672553 - 2⁶ = 655672489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655677553) 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, 30938 + ... + 47628.

It is an arithmetic number, because the mean of its divisors is an integer number (82809012).

Almost surely, 2^655672553 is an apocalyptic number.

It is an amenable number.

655672553 is a deficient number, since it is larger than the sum of its proper divisors (6799543).

655672553 is a wasteful number, since it uses less digits than its factorization.

655672553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17095.

The product of its digits is 945000, while the sum is 44.

The square root of 655672553 is about 25606.1038231122. The cubic root of 655672553 is about 868.7517011992.

The spelling of 655672553 in words is "six hundred fifty-five million, six hundred seventy-two thousand, five hundred fifty-three".