255123052100 has 54 divisors (see below), whose sum is σ = 644003488170. Its totient is φ = 87470759040.

The previous prime is 255123052097. The next prime is 255123052133. The reversal of 255123052100 is 1250321552.

It can be written as a sum of positive squares in 3 ways, for example, as 443355136 + 254679696964 = 21056^2 + 504658^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 255123052100.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26028065 + ... + 26037864.

Almost surely, 2^255123052100 is an apocalyptic number.

255123052100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255123052100 is an abundant number, since it is smaller than the sum of its proper divisors (388880436070).

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

255123052100 is a wasteful number, since it uses less digits than its factorization.

255123052100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52065957 (or 52065943 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 255123052100 its reverse (1250321552), we get a palindrome (256373373652).

The spelling of 255123052100 in words is "two hundred fifty-five billion, one hundred twenty-three million, fifty-two thousand, one hundred".