655020501 has 8 divisors (see below), whose sum is σ = 887678304. Its totient is φ = 429521520.

The previous prime is 655020491. The next prime is 655020517. The reversal of 655020501 is 105020556.

655020501 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 655020501 - 2⁶ = 655020437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655020581) 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, 1789491 + ... + 1789856.

It is an arithmetic number, because the mean of its divisors is an integer number (110959788).

Almost surely, 2^655020501 is an apocalyptic number.

655020501 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

655020501 is a deficient number, since it is larger than the sum of its proper divisors (232657803).

655020501 is a wasteful number, since it uses less digits than its factorization.

655020501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3579411.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 655020501 is about 25593.3683011830. The cubic root of 655020501 is about 868.4636208321.

Subtracting from 655020501 its reverse (105020556), we obtain a palindrome (549999945).

The spelling of 655020501 in words is "six hundred fifty-five million, twenty thousand, five hundred one".