2501000 has 64 divisors (see below), whose sum is σ = 6093360. Its totient is φ = 960000.

The previous prime is 2500999. The next prime is 2501003. The reversal of 2501000 is 1052.

It can be written as a sum of positive squares in 8 ways, for example, as 386884 + 2114116 = 622^2 + 1454^2 .

It is a Harshad number since it is a multiple of its sum of digits (8).

It is not an unprimeable number, because it can be changed into a prime (2501003) 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, 40970 + ... + 41030.

2^2501000 is an apocalyptic number.

2501000 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 2501000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3046680).

2501000 is an abundant number, since it is smaller than the sum of its proper divisors (3592360).

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

2501000 is a wasteful number, since it uses less digits than its factorization.

2501000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 8.

The square root of 2501000 is about 1581.4550262338. The cubic root of 2501000 is about 135.7389745349.

Adding to 2501000 its reverse (1052), we get a palindrome (2502052).

The spelling of 2501000 in words is "two million, five hundred one thousand".