2500172000 has 192 divisors, whose sum is σ = 6576111360. Its totient is φ = 931392000.

The previous prime is 2500171991. The next prime is 2500172009. The reversal of 2500172000 is 2710052.

It is an interprime number because it is at equal distance from previous prime (2500171991) and next prime (2500172009).

It is a self number, because there is not a number n which added to its sum of digits gives 2500172000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500172009) 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, 5091755 + ... + 5092245.

It is an arithmetic number, because the mean of its divisors is an integer number (34250580).

Almost surely, 2^2500172000 is an apocalyptic number.

2500172000 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 2500172000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288055680).

2500172000 is an abundant number, since it is smaller than the sum of its proper divisors (4075939360).

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

2500172000 is a wasteful number, since it uses less digits than its factorization.

2500172000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 2500172000 is about 50001.7199704170. The cubic root of 2500172000 is about 1357.2399329057.

Adding to 2500172000 its reverse (2710052), we get a palindrome (2502882052).

The spelling of 2500172000 in words is "two billion, five hundred million, one hundred seventy-two thousand".