655611953 has 8 divisors (see below), whose sum is σ = 705944160. Its totient is φ = 606587200.

The previous prime is 655611889. The next prime is 655611989. The reversal of 655611953 is 359116556.

It is a happy number.

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

It is not a de Polignac number, because 655611953 - 2⁶ = 655611889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655611953.

It is not an unprimeable number, because it can be changed into a prime (655611553) 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, 325823 + ... + 327828.

It is an arithmetic number, because the mean of its divisors is an integer number (88243020).

Almost surely, 2^655611953 is an apocalyptic number.

It is an amenable number.

655611953 is a deficient number, since it is larger than the sum of its proper divisors (50332207).

655611953 is a wasteful number, since it uses less digits than its factorization.

655611953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653727.

The product of its digits is 121500, while the sum is 41.

The square root of 655611953 is about 25604.9204841569. The cubic root of 655611953 is about 868.7249358192.

The spelling of 655611953 in words is "six hundred fifty-five million, six hundred eleven thousand, nine hundred fifty-three".