253541765500 has 192 divisors, whose sum is σ = 621343457280. Its totient is φ = 89908224000.

The previous prime is 253541765327. The next prime is 253541765557. The reversal of 253541765500 is 5567145352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10093957 + ... + 10119043.

It is an arithmetic number, because the mean of its divisors is an integer number (3236163840).

Almost surely, 2^253541765500 is an apocalyptic number.

253541765500 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 253541765500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310671728640).

253541765500 is an abundant number, since it is smaller than the sum of its proper divisors (367801691780).

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

253541765500 is a wasteful number, since it uses less digits than its factorization.

253541765500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25193 (or 25181 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 253541765500 in words is "two hundred fifty-three billion, five hundred forty-one million, seven hundred sixty-five thousand, five hundred".