2506845 has 16 divisors (see below), whose sum is σ = 4375872. Its totient is φ = 1215360.

The previous prime is 2506843. The next prime is 2506859. The reversal of 2506845 is 5486052.

It is not a de Polignac number, because 2506845 - 2¹ = 2506843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7432 + ... + 7761.

It is an arithmetic number, because the mean of its divisors is an integer number (273492).

2^2506845 is an apocalyptic number.

It is an amenable number.

2506845 is a deficient number, since it is larger than the sum of its proper divisors (1869027).

2506845 is a wasteful number, since it uses less digits than its factorization.

2506845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15212.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2506845 is about 1583.3019295131. The cubic root of 2506845 is about 135.8446358752.

The spelling of 2506845 in words is "two million, five hundred six thousand, eight hundred forty-five".