255102420 has 96 divisors (see below), whose sum is σ = 739420416. Its totient is φ = 65664000.

The previous prime is 255102377. The next prime is 255102431. The reversal of 255102420 is 24201552.

It is a happy number.

255102420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 334840 + ... + 335600.

It is an arithmetic number, because the mean of its divisors is an integer number (7702296).

Almost surely, 2^255102420 is an apocalyptic number.

255102420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255102420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369710208).

255102420 is an abundant number, since it is smaller than the sum of its proper divisors (484317996).

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

255102420 is a wasteful number, since it uses less digits than its factorization.

255102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 255102420 is about 15971.9259953207. The cubic root of 255102420 is about 634.2174583352.

Adding to 255102420 its reverse (24201552), we get a palindrome (279303972).

The spelling of 255102420 in words is "two hundred fifty-five million, one hundred two thousand, four hundred twenty".