2505654 has 20 divisors (see below), whose sum is σ = 5614884. Its totient is φ = 835164.

The previous prime is 2505641. The next prime is 2505673. The reversal of 2505654 is 4565052.

2505654 is a `hidden beast` number, since 2 + 5 + 0 + 5 + 654 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 7572 + ... + 7895.

2^2505654 is an apocalyptic number.

2505654 is an abundant number, since it is smaller than the sum of its proper divisors (3109230).

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

2505654 is a wasteful number, since it uses less digits than its factorization.

2505654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15481 (or 15472 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2505654 is about 1582.9257721068. The cubic root of 2505654 is about 135.8231192423.

The spelling of 2505654 in words is "two million, five hundred five thousand, six hundred fifty-four".