25101451000 has 128 divisors (see below), whose sum is σ = 62411731200. Its totient is φ = 9422467200.

The previous prime is 25101450961. The next prime is 25101451003. The reversal of 25101451000 is 15410152.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25101451003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2026827 + ... + 2039173.

It is an arithmetic number, because the mean of its divisors is an integer number (487591650).

Almost surely, 2^25101451000 is an apocalyptic number.

25101451000 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 25101451000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31205865600).

25101451000 is an abundant number, since it is smaller than the sum of its proper divisors (37310280200).

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

25101451000 is a wasteful number, since it uses less digits than its factorization.

25101451000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494 (or 12480 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 25101451000 its reverse (15410152), we get a palindrome (25116861152).

The spelling of 25101451000 in words is "twenty-five billion, one hundred one million, four hundred fifty-one thousand".