2530216856 has 8 divisors (see below), whose sum is σ = 4744156620. Its totient is φ = 1265108424.

The previous prime is 2530216849. The next prime is 2530216901. The reversal of 2530216856 is 6586120352.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 158138546 + ... + 158138561.

Almost surely, 2^2530216856 is an apocalyptic number.

It is an amenable number.

2530216856 is a deficient number, since it is larger than the sum of its proper divisors (2213939764).

2530216856 is a wasteful number, since it uses less digits than its factorization.

2530216856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316277113 (or 316277109 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 2530216856 is about 50301.2609782300. The cubic root of 2530216856 is about 1362.6550023809.

The spelling of 2530216856 in words is "two billion, five hundred thirty million, two hundred sixteen thousand, eight hundred fifty-six".