25130643000 has 128 divisors (see below), whose sum is σ = 78699479040. Its totient is φ = 6676560000.

The previous prime is 25130642983. The next prime is 25130643047. The reversal of 25130643000 is 34603152.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 797545 + ... + 828455.

It is an arithmetic number, because the mean of its divisors is an integer number (614839680).

Almost surely, 2^25130643000 is an apocalyptic number.

25130643000 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 25130643000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39349739520).

25130643000 is an abundant number, since it is smaller than the sum of its proper divisors (53568836040).

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

25130643000 is a wasteful number, since it uses less digits than its factorization.

25130643000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31206 (or 31192 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The spelling of 25130643000 in words is "twenty-five billion, one hundred thirty million, six hundred forty-three thousand".