2051610903 has 16 divisors (see below), whose sum is σ = 3042309600. Its totient is φ = 1366441920.

The previous prime is 2051610893. The next prime is 2051610917. The reversal of 2051610903 is 3090161502.

It is not a de Polignac number, because 2051610903 - 2⁵ = 2051610871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051610923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6678 + ... + 64403.

It is an arithmetic number, because the mean of its divisors is an integer number (190144350).

Almost surely, 2^2051610903 is an apocalyptic number.

2051610903 is a deficient number, since it is larger than the sum of its proper divisors (990698697).

2051610903 is a wasteful number, since it uses less digits than its factorization.

2051610903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72159 (or 72153 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2051610903 is about 45294.7116449592. The cubic root of 2051610903 is about 1270.6667511813. Note that the first 3 decimals are identical.

The spelling of 2051610903 in words is "two billion, fifty-one million, six hundred ten thousand, nine hundred three".