655550285 has 16 divisors (see below), whose sum is σ = 850891440. Its totient is φ = 481973760.

The previous prime is 655550281. The next prime is 655550321. The reversal of 655550285 is 582055556.

It can be written as a sum of positive squares in 8 ways, for example, as 292681 + 655257604 = 541^2 + 25598^2 .

It is not a de Polignac number, because 655550285 - 2² = 655550281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655550281) 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, 7136 + ... + 36905.

It is an arithmetic number, because the mean of its divisors is an integer number (53180715).

Almost surely, 2^655550285 is an apocalyptic number.

655550285 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

655550285 is a deficient number, since it is larger than the sum of its proper divisors (195341155).

655550285 is a wasteful number, since it uses less digits than its factorization.

655550285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44288.

The product of its (nonzero) digits is 300000, while the sum is 41.

The square root of 655550285 is about 25603.7162341719. The cubic root of 655550285 is about 868.6976970392.

The spelling of 655550285 in words is "six hundred fifty-five million, five hundred fifty thousand, two hundred eighty-five".