2501871 has 16 divisors (see below), whose sum is σ = 3525120. Its totient is φ = 1575200.

The previous prime is 2501843. The next prime is 2501881. The reversal of 2501871 is 1781052.

It is a cyclic number.

It is not a de Polignac number, because 2501871 - 2¹⁰ = 2500847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6790 + ... + 7148.

It is an arithmetic number, because the mean of its divisors is an integer number (220320).

2^2501871 is an apocalyptic number.

2501871 is a deficient number, since it is larger than the sum of its proper divisors (1023249).

2501871 is a wasteful number, since it uses less digits than its factorization.

2501871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 2501871 is about 1581.7303815758. The cubic root of 2501871 is about 135.7547302226.

The spelling of 2501871 in words is "two million, five hundred one thousand, eight hundred seventy-one".