253003005500 has 48 divisors (see below), whose sum is σ = 631495510464. Its totient is φ = 86743886400.

The previous prime is 253003005481. The next prime is 253003005503. The reversal of 253003005500 is 5500300352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253003005503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36139787 + ... + 36146786.

It is an arithmetic number, because the mean of its divisors is an integer number (13156156468).

Almost surely, 2^253003005500 is an apocalyptic number.

253003005500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253003005500 is an abundant number, since it is smaller than the sum of its proper divisors (378492504964).

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

253003005500 is a wasteful number, since it uses less digits than its factorization.

253003005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72286599 (or 72286587 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 23.

Adding to 253003005500 its reverse (5500300352), we get a palindrome (258503305852).

The spelling of 253003005500 in words is "two hundred fifty-three billion, three million, five thousand, five hundred".