2505645829 has 8 divisors (see below), whose sum is σ = 2623001472. Its totient is φ = 2388991440.

The previous prime is 2505645823. The next prime is 2505645839. The reversal of 2505645829 is 9285465052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2505645829 - 2⁵ = 2505645797 is a prime.

It is a super-2 number, since 2×2505645829² = 12556522040770194482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505645823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167994 + ... + 182299.

It is an arithmetic number, because the mean of its divisors is an integer number (327875184).

Almost surely, 2^2505645829 is an apocalyptic number.

It is an amenable number.

2505645829 is a deficient number, since it is larger than the sum of its proper divisors (117355643).

2505645829 is a wasteful number, since it uses less digits than its factorization.

2505645829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350627.

The product of its (nonzero) digits is 864000, while the sum is 46.

The square root of 2505645829 is about 50056.4264505568. The cubic root of 2505645829 is about 1358.2297160132.

The spelling of 2505645829 in words is "two billion, five hundred five million, six hundred forty-five thousand, eight hundred twenty-nine".