2500943 has 4 divisors (see below), whose sum is σ = 2525328. Its totient is φ = 2476560.

The previous prime is 2500937. The next prime is 2500957. The reversal of 2500943 is 3490052.

2500943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2500943 - 2⁶ = 2500879 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500933) 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 3 ways as a sum of consecutive naturals, for example, 12038 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (631332).

2^2500943 is an apocalyptic number.

2500943 is a deficient number, since it is larger than the sum of its proper divisors (24385).

2500943 is a wasteful number, since it uses less digits than its factorization.

2500943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24384.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2500943 is about 1581.4370047523. The cubic root of 2500943 is about 135.7379433234.

Adding to 2500943 its sum of digits (23), we get a triangular number (2500966 = T₂₂₃₆).

Adding to 2500943 its reverse (3490052), we get a palindrome (5990995).

It can be divided in two parts, 25009 and 43, that added together give a palindrome (25052).

The spelling of 2500943 in words is "two million, five hundred thousand, nine hundred forty-three".