655508013 has 16 divisors (see below), whose sum is σ = 907251456. Its totient is φ = 420690240.

The previous prime is 655508011. The next prime is 655508017. The reversal of 655508013 is 310805556.

It is not a de Polignac number, because 655508013 - 2¹ = 655508011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655508011) 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, 29506 + ... + 46707.

It is an arithmetic number, because the mean of its divisors is an integer number (56703216).

Almost surely, 2^655508013 is an apocalyptic number.

It is an amenable number.

655508013 is a deficient number, since it is larger than the sum of its proper divisors (251743443).

655508013 is a wasteful number, since it uses less digits than its factorization.

655508013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76324.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 655508013 is about 25602.8907156985. The cubic root of 655508013 is about 868.6790244933.

The spelling of 655508013 in words is "six hundred fifty-five million, five hundred eight thousand, thirteen".