2505654645 has 16 divisors (see below), whose sum is σ = 4317436032. Its totient is φ = 1233552960.

The previous prime is 2505654629. The next prime is 2505654703. The reversal of 2505654645 is 5464565052.

It is a happy number.

It is not a de Polignac number, because 2505654645 - 2⁴ = 2505654629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2505654597 and 2505654606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6424561 + ... + 6424950.

It is an arithmetic number, because the mean of its divisors is an integer number (269839752).

Almost surely, 2^2505654645 is an apocalyptic number.

It is an amenable number.

2505654645 is a deficient number, since it is larger than the sum of its proper divisors (1811781387).

2505654645 is a wasteful number, since it uses less digits than its factorization.

2505654645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12849532.

The product of its (nonzero) digits is 720000, while the sum is 42.

The square root of 2505654645 is about 50056.5145111004. The cubic root of 2505654645 is about 1358.2313089676.

The spelling of 2505654645 in words is "two billion, five hundred five million, six hundred fifty-four thousand, six hundred forty-five".