2051511104 has 28 divisors (see below), whose sum is σ = 4072464804. Its totient is φ = 1025378304.

The previous prime is 2051511079. The next prime is 2051511109. The reversal of 2051511104 is 4011151502.

It can be written as a sum of positive squares in 2 ways, for example, as 508592704 + 1542918400 = 22552^2 + 39280^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051511109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268424 + ... + 275960.

Almost surely, 2^2051511104 is an apocalyptic number.

It is an amenable number.

2051511104 is a deficient number, since it is larger than the sum of its proper divisors (2020953700).

2051511104 is an equidigital number, since it uses as much as digits as its factorization.

2051511104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11802 (or 11792 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2051511104 is about 45293.6099687362. The cubic root of 2051511104 is about 1270.6461473187.

Adding to 2051511104 its reverse (4011151502), we get a palindrome (6062662606).

The spelling of 2051511104 in words is "two billion, fifty-one million, five hundred eleven thousand, one hundred four".