2530805805 has 48 divisors (see below), whose sum is σ = 4993612416. Its totient is φ = 1173701760.

The previous prime is 2530805801. The next prime is 2530805813. The reversal of 2530805805 is 5085080352.

It is not a de Polignac number, because 2530805805 - 2² = 2530805801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2530805805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530805801) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99762 + ... + 122531.

It is an arithmetic number, because the mean of its divisors is an integer number (104033592).

Almost surely, 2^2530805805 is an apocalyptic number.

It is an amenable number.

2530805805 is a deficient number, since it is larger than the sum of its proper divisors (2462806611).

2530805805 is a wasteful number, since it uses less digits than its factorization.

2530805805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222338 (or 222335 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 2530805805 is about 50307.1148546605. The cubic root of 2530805805 is about 1362.7607208611.

The spelling of 2530805805 in words is "two billion, five hundred thirty million, eight hundred five thousand, eight hundred five".