2051511441 has 16 divisors (see below), whose sum is σ = 3127225344. Its totient is φ = 1171875024.

The previous prime is 2051511419. The next prime is 2051511457. The reversal of 2051511441 is 1441151502.

It is not a de Polignac number, because 2051511441 - 2⁵ = 2051511409 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2051511401) 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, 48900 + ... + 80586.

It is an arithmetic number, because the mean of its divisors is an integer number (195451584).

Almost surely, 2^2051511441 is an apocalyptic number.

2051511441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2051511441 is a deficient number, since it is larger than the sum of its proper divisors (1075713903).

2051511441 is a wasteful number, since it uses less digits than its factorization.

2051511441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34780.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 2051511441 is about 45293.6136889076. The cubic root of 2051511441 is about 1270.6462168947.

Adding to 2051511441 its reverse (1441151502), we get a palindrome (3492662943).

The spelling of 2051511441 in words is "two billion, fifty-one million, five hundred eleven thousand, four hundred forty-one".