2102556530 has 32 divisors (see below), whose sum is σ = 3988906560. Its totient is φ = 795735360.

The previous prime is 2102556517. The next prime is 2102556551. The reversal of 2102556530 is 356552012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2102556493 and 2102556502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150440 + ... + 163820.

It is an arithmetic number, because the mean of its divisors is an integer number (124653330).

Almost surely, 2^2102556530 is an apocalyptic number.

2102556530 is a deficient number, since it is larger than the sum of its proper divisors (1886350030).

2102556530 is a wasteful number, since it uses less digits than its factorization.

2102556530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14234.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 2102556530 is about 45853.6424943537. The cubic root of 2102556530 is about 1281.0986112465.

The spelling of 2102556530 in words is "two billion, one hundred two million, five hundred fifty-six thousand, five hundred thirty".