2500278 has 32 divisors (see below), whose sum is σ = 5588352. Its totient is φ = 739200.

The previous prime is 2500273. The next prime is 2500297. The reversal of 2500278 is 8720052.

2500278 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2398 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (174636).

2^2500278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2500278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2794176).

2500278 is an abundant number, since it is smaller than the sum of its proper divisors (3088074).

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

2500278 is a wasteful number, since it uses less digits than its factorization.

2500278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 2500278 is about 1581.2267389593. The cubic root of 2500278 is about 135.7259113639.

The spelling of 2500278 in words is "two million, five hundred thousand, two hundred seventy-eight".