655341521 has 8 divisors (see below), whose sum is σ = 708478080. Its totient is φ = 604069488.

The previous prime is 655341503. The next prime is 655341527. The reversal of 655341521 is 125143556.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655341521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655341527) 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, 465401 + ... + 466806.

It is an arithmetic number, because the mean of its divisors is an integer number (88559760).

Almost surely, 2^655341521 is an apocalyptic number.

It is an amenable number.

655341521 is a deficient number, since it is larger than the sum of its proper divisors (53136559).

655341521 is a wasteful number, since it uses less digits than its factorization.

655341521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932263.

The product of its digits is 18000, while the sum is 32.

The square root of 655341521 is about 25599.6390794870. The cubic root of 655341521 is about 868.6054732162.

The spelling of 655341521 in words is "six hundred fifty-five million, three hundred forty-one thousand, five hundred twenty-one".