2511982 has 16 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 1134520.

The previous prime is 2511979. The next prime is 2511983. The reversal of 2511982 is 2891152.

2511982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2511982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2511983) 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 7 ways as a sum of consecutive naturals, for example, 4743 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (258552).

2^2511982 is an apocalyptic number.

2511982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2511982 is a deficient number, since it is larger than the sum of its proper divisors (1624850).

2511982 is a wasteful number, since it uses less digits than its factorization.

2511982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its digits is 1440, while the sum is 28.

The square root of 2511982 is about 1584.9233419948. The cubic root of 2511982 is about 135.9373630245.

The spelling of 2511982 in words is "two million, five hundred eleven thousand, nine hundred eighty-two".