655021713 has 16 divisors (see below), whose sum is σ = 973408320. Its totient is φ = 389362176.

The previous prime is 655021711. The next prime is 655021771. The reversal of 655021713 is 317120556.

It is not a de Polignac number, because 655021713 - 2¹ = 655021711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655021711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337020 + ... + 338957.

It is an arithmetic number, because the mean of its divisors is an integer number (60838020).

Almost surely, 2^655021713 is an apocalyptic number.

It is an amenable number.

655021713 is a deficient number, since it is larger than the sum of its proper divisors (318386607).

655021713 is a wasteful number, since it uses less digits than its factorization.

655021713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676016.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 655021713 is about 25593.3919791809. The cubic root of 655021713 is about 868.4641564781.

The spelling of 655021713 in words is "six hundred fifty-five million, twenty-one thousand, seven hundred thirteen".