252555002500 has 60 divisors (see below), whose sum is σ = 555179885568. Its totient is φ = 100492900000.

The previous prime is 252555002471. The next prime is 252555002543. The reversal of 252555002500 is 5200555252.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 213045 + ... + 741955.

Almost surely, 2^252555002500 is an apocalyptic number.

252555002500 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 252555002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277589942784).

252555002500 is an abundant number, since it is smaller than the sum of its proper divisors (302624883068).

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

252555002500 is a wasteful number, since it uses less digits than its factorization.

252555002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529126 (or 529109 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 31.

Adding to 252555002500 its reverse (5200555252), we get a palindrome (257755557752).

The spelling of 252555002500 in words is "two hundred fifty-two billion, five hundred fifty-five million, two thousand, five hundred".