255153420500 has 192 divisors, whose sum is σ = 628992000000. Its totient is φ = 89580240000.

The previous prime is 255153420463. The next prime is 255153420503. The reversal of 255153420500 is 5024351552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255153420503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 85078001 + ... + 85080999.

It is an arithmetic number, because the mean of its divisors is an integer number (3276000000).

Almost surely, 2^255153420500 is an apocalyptic number.

255153420500 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 255153420500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314496000000).

255153420500 is an abundant number, since it is smaller than the sum of its proper divisors (373838579500).

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

255153420500 is a wasteful number, since it uses less digits than its factorization.

255153420500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 255153420500 in words is "two hundred fifty-five billion, one hundred fifty-three million, four hundred twenty thousand, five hundred".