655010399 has 8 divisors (see below), whose sum is σ = 683873280. Its totient is φ = 626179576.

The previous prime is 655010393. The next prime is 655010413. The reversal of 655010399 is 993010556.

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

It is a cyclic number.

It is not a de Polignac number, because 655010399 - 2²⁸ = 386574943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655010393) 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, 39914 + ... + 53880.

It is an arithmetic number, because the mean of its divisors is an integer number (85484160).

Almost surely, 2^655010399 is an apocalyptic number.

655010399 is a deficient number, since it is larger than the sum of its proper divisors (28862881).

655010399 is a wasteful number, since it uses less digits than its factorization.

655010399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16029.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 655010399 is about 25593.1709446094. The cubic root of 655010399 is about 868.4591562062.

The spelling of 655010399 in words is "six hundred fifty-five million, ten thousand, three hundred ninety-nine".