2051531110 has 16 divisors (see below), whose sum is σ = 3693685536. Its totient is φ = 820405888.

The previous prime is 2051530997. The next prime is 2051531129. The reversal of 2051531110 is 111351502.

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 7 ways as a sum of consecutive naturals, for example, 19719 + ... + 67021.

It is an arithmetic number, because the mean of its divisors is an integer number (230855346).

Almost surely, 2^2051531110 is an apocalyptic number.

2051531110 is a deficient number, since it is larger than the sum of its proper divisors (1642154426).

2051531110 is a wasteful number, since it uses less digits than its factorization.

2051531110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51647.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 2051531110 is about 45293.8308161277. The cubic root of 2051531110 is about 1270.6502776829.

Adding to 2051531110 its reverse (111351502), we get a palindrome (2162882612).

The spelling of 2051531110 in words is "two billion, fifty-one million, five hundred thirty-one thousand, one hundred ten".