255018620 has 24 divisors (see below), whose sum is σ = 538322064. Its totient is φ = 101477376.

The previous prime is 255018611. The next prime is 255018623. The reversal of 255018620 is 26810552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255018623) 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, 29174 + ... + 36893.

It is an arithmetic number, because the mean of its divisors is an integer number (22430086).

Almost surely, 2^255018620 is an apocalyptic number.

255018620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255018620 is an abundant number, since it is smaller than the sum of its proper divisors (283303444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255018620 is a wasteful number, since it uses less digits than its factorization.

255018620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66269 (or 66267 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 255018620 is about 15969.3024268438. The cubic root of 255018620 is about 634.1480048667.

The spelling of 255018620 in words is "two hundred fifty-five million, eighteen thousand, six hundred twenty".