2100606550 has 48 divisors (see below), whose sum is σ = 4586001120. Its totient is φ = 700738560.

The previous prime is 2100606527. The next prime is 2100606551. The reversal of 2100606550 is 556060012.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100606551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68155 + ... + 94054.

It is an arithmetic number, because the mean of its divisors is an integer number (95541690).

Almost surely, 2^2100606550 is an apocalyptic number.

2100606550 is an abundant number, since it is smaller than the sum of its proper divisors (2485394570).

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

2100606550 is a wasteful number, since it uses less digits than its factorization.

2100606550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162265 (or 162260 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2100606550 is about 45832.3744748186. The cubic root of 2100606550 is about 1280.7024444355.

Adding to 2100606550 its reverse (556060012), we get a palindrome (2656666562).

The spelling of 2100606550 in words is "two billion, one hundred million, six hundred six thousand, five hundred fifty".