655513406 has 8 divisors (see below), whose sum is σ = 987680064. Its totient is φ = 326286720.

The previous prime is 655513403. The next prime is 655513427. The reversal of 655513406 is 604315556.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655513403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734435 + ... + 735326.

It is an arithmetic number, because the mean of its divisors is an integer number (123460008).

Almost surely, 2^655513406 is an apocalyptic number.

655513406 is a deficient number, since it is larger than the sum of its proper divisors (332166658).

655513406 is a wasteful number, since it uses less digits than its factorization.

655513406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469986.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 655513406 is about 25602.9960356205. The cubic root of 655513406 is about 868.6814067541.

The spelling of 655513406 in words is "six hundred fifty-five million, five hundred thirteen thousand, four hundred six".