2051021415 has 16 divisors (see below), whose sum is σ = 3285475200. Its totient is φ = 1092597792.

The previous prime is 2051021393. The next prime is 2051021417. The reversal of 2051021415 is 5141201502.

It is not a de Polignac number, because 2051021415 - 2⁹ = 2051020903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2051021391 and 2051021400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051021417) 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, 66705 + ... + 92474.

It is an arithmetic number, because the mean of its divisors is an integer number (205342200).

Almost surely, 2^2051021415 is an apocalyptic number.

2051021415 is a deficient number, since it is larger than the sum of its proper divisors (1234453785).

2051021415 is a wasteful number, since it uses less digits than its factorization.

2051021415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160046.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2051021415 is about 45288.2039277338. The cubic root of 2051021415 is about 1270.5450395785.

Adding to 2051021415 its reverse (5141201502), we get a palindrome (7192222917).

The spelling of 2051021415 in words is "two billion, fifty-one million, twenty-one thousand, four hundred fifteen".