655263 has 16 divisors (see below), whose sum is σ = 1109760. Its totient is φ = 374328.

The previous prime is 655261. The next prime is 655267. The reversal of 655263 is 362556.

655263 is a `hidden beast` number, since 655 + 2 + 6 + 3 = 666.

It is not a de Polignac number, because 655263 - 2¹ = 655261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

655263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655261) 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, 1545 + ... + 1922.

It is an arithmetic number, because the mean of its divisors is an integer number (69360).

2⁶⁵⁵²⁶³ is an apocalyptic number.

655263 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

655263 is a deficient number, since it is larger than the sum of its proper divisors (454497).

655263 is a wasteful number, since it uses less digits than its factorization.

655263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483 (or 3477 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 655263 is about 809.4831684476. The cubic root of 655263 is about 86.8570780621.

The spelling of 655263 in words is "six hundred fifty-five thousand, two hundred sixty-three".