623055 has 16 divisors (see below), whose sum is σ = 1012320. Its totient is φ = 327168.

The previous prime is 623041. The next prime is 623057. The reversal of 623055 is 550326.

623055 = 351² + 352² + ... + 355².

623055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 623055 - 2⁵ = 623023 is a prime.

It is an Ulam number.

623055 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623057) 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, 811 + ... + 1379.

It is an arithmetic number, because the mean of its divisors is an integer number (63270).

2⁶²³⁰⁵⁵ is an apocalyptic number.

623055 is a deficient number, since it is larger than the sum of its proper divisors (389265).

623055 is a wasteful number, since it uses less digits than its factorization.

623055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 623055 is about 789.3383305022. The cubic root of 623055 is about 85.4100144201.

The spelling of 623055 in words is "six hundred twenty-three thousand, fifty-five".