2051517 has 16 divisors (see below), whose sum is σ = 3019968. Its totient is φ = 1230720.

The previous prime is 2051507. The next prime is 2051537. The reversal of 2051517 is 7151502.

It is not a de Polignac number, because 2051517 - 2¹⁰ = 2050493 is a prime.

2051517 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2051493 and 2051502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051507) 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, 958 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (188748).

2^2051517 is an apocalyptic number.

It is an amenable number.

2051517 is a deficient number, since it is larger than the sum of its proper divisors (968451).

2051517 is a wasteful number, since it uses less digits than its factorization.

2051517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 2051517 is about 1432.3117677377. The cubic root of 2051517 is about 127.0647364588.

The spelling of 2051517 in words is "two million, fifty-one thousand, five hundred seventeen".