655482021 has 8 divisors (see below), whose sum is σ = 882629664. Its totient is φ = 432661200.

The previous prime is 655481999. The next prime is 655482029. The reversal of 655482021 is 120284556.

655482021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 655482021 - 2¹³ = 655473829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655482029) 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, 1081351 + ... + 1081956.

It is an arithmetic number, because the mean of its divisors is an integer number (110328708).

Almost surely, 2^655482021 is an apocalyptic number.

It is an amenable number.

655482021 is a deficient number, since it is larger than the sum of its proper divisors (227147643).

655482021 is a wasteful number, since it uses less digits than its factorization.

655482021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163411.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 655482021 is about 25602.3831117340. The cubic root of 655482021 is about 868.6675428113.

The spelling of 655482021 in words is "six hundred fifty-five million, four hundred eighty-two thousand, twenty-one".