2051442513 has 36 divisors (see below), whose sum is σ = 3256416540. Its totient is φ = 1242748416.

The previous prime is 2051442509. The next prime is 2051442527. The reversal of 2051442513 is 3152441502.

2051442513 is a `hidden beast` number, since 2 + 0 + 5 + 144 + 2 + 513 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 221057424 + 1830385089 = 14868^2 + 42783^2 .

It is not a de Polignac number, because 2051442513 - 2² = 2051442509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2051442593) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 61831 + ... + 89027.

It is an arithmetic number, because the mean of its divisors is an integer number (90456015).

Almost surely, 2^2051442513 is an apocalyptic number.

It is an amenable number.

2051442513 is a deficient number, since it is larger than the sum of its proper divisors (1204974027).

2051442513 is a wasteful number, since it uses less digits than its factorization.

2051442513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27266 (or 27246 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2051442513 is about 45292.8527805436. The cubic root of 2051442513 is about 1270.6319860725.

The spelling of 2051442513 in words is "two billion, fifty-one million, four hundred forty-two thousand, five hundred thirteen".