253251520500 has 192 divisors, whose sum is σ = 806687481600. Its totient is φ = 61228224000.

The previous prime is 253251520499. The next prime is 253251520507. The reversal of 253251520500 is 5025152352.

253251520500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253251520507) 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, 6133926 + ... + 6175074.

It is an arithmetic number, because the mean of its divisors is an integer number (4201497300).

Almost surely, 2^253251520500 is an apocalyptic number.

253251520500 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 253251520500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403343740800).

253251520500 is an abundant number, since it is smaller than the sum of its proper divisors (553435961100).

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

253251520500 is a wasteful number, since it uses less digits than its factorization.

253251520500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41555 (or 41543 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 253251520500 its reverse (5025152352), we get a palindrome (258276672852).

The spelling of 253251520500 in words is "two hundred fifty-three billion, two hundred fifty-one million, five hundred twenty thousand, five hundred".