12553450000 has 480 divisors, whose sum is σ = 39057500160. Its totient is φ = 3801600000.

The previous prime is 12553449977. The next prime is 12553450003. The reversal of 12553450000 is 5435521.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553450003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141049956 + ... + 141050044.

It is an arithmetic number, because the mean of its divisors is an integer number (81369792).

Almost surely, 2^12553450000 is an apocalyptic number.

12553450000 is a gapful number since it is divisible by the number (10) 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 12553450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19528750080).

12553450000 is an abundant number, since it is smaller than the sum of its proper divisors (26504050160).

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

12553450000 is an equidigital number, since it uses as much as digits as its factorization.

12553450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 12553450000 its reverse (5435521), we get a palindrome (12558885521).

The spelling of 12553450000 in words is "twelve billion, five hundred fifty-three million, four hundred fifty thousand".