2505144 has 16 divisors (see below), whose sum is σ = 6262920. Its totient is φ = 835040.

The previous prime is 2505143. The next prime is 2505157. The reversal of 2505144 is 4415052.

2505144 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 2505144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505143) 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, 52167 + ... + 52214.

2^2505144 is an apocalyptic number.

2505144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2505144 is an abundant number, since it is smaller than the sum of its proper divisors (3757776).

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

2505144 is a wasteful number, since it uses less digits than its factorization.

2505144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104390 (or 104386 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2505144 is about 1582.7646698104. The cubic root of 2505144 is about 135.8139034859.

The spelling of 2505144 in words is "two million, five hundred five thousand, one hundred forty-four".