2530685680 has 20 divisors (see below), whose sum is σ = 5883844392. Its totient is φ = 1012274240.

The previous prime is 2530685659. The next prime is 2530685767. The reversal of 2530685680 is 865860352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15816706 + ... + 15816865.

Almost surely, 2^2530685680 is an apocalyptic number.

2530685680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2530685680 is an abundant number, since it is smaller than the sum of its proper divisors (3353158712).

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

2530685680 is a wasteful number, since it uses less digits than its factorization.

2530685680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31633584 (or 31633578 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 2530685680 is about 50305.9209238833. The cubic root of 2530685680 is about 1362.7391593198.

The spelling of 2530685680 in words is "two billion, five hundred thirty million, six hundred eighty-five thousand, six hundred eighty".