255135553102500 has 360 divisors, whose sum is σ = 867215085216480. Its totient is φ = 58191783552000.

The previous prime is 255135553102499. The next prime is 255135553102561. The reversal of 255135553102500 is 5201355531552.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 170879196 + ... + 172365804.

It is an arithmetic number, because the mean of its divisors is an integer number (2408930792268).

Almost surely, 2^{255135553102500} is an apocalyptic number.

255135553102500 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 255135553102500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433607542608240).

255135553102500 is an abundant number, since it is smaller than the sum of its proper divisors (612079532113980).

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

255135553102500 is a wasteful number, since it uses less digits than its factorization.

255135553102500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487117 (or 1487093 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 255135553102500 in words is "two hundred fifty-five trillion, one hundred thirty-five billion, five hundred fifty-three million, one hundred two thousand, five hundred".