2051015453125 has 14 divisors (see below), whose sum is σ = 2563736519690. Its totient is φ = 1640812350000.

The previous prime is 2051015453087. The next prime is 2051015453129. The reversal of 2051015453125 is 5213545101502.

It can be written as a sum of positive squares in 7 ways, for example, as 1971128952961 + 79886500164 = 1403969^2 + 282642^2 .

It is not a de Polignac number, because 2051015453125 - 2¹⁵ = 2051015420357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051015453129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 65616870 + ... + 65648119.

Almost surely, 2^{2051015453125} is an apocalyptic number.

2051015453125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2051015453125 is a deficient number, since it is larger than the sum of its proper divisors (512721066565).

2051015453125 is an frugal number, since it uses more digits than its factorization.

2051015453125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131265019 (or 131264994 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 34.

The spelling of 2051015453125 in words is "two trillion, fifty-one billion, fifteen million, four hundred fifty-three thousand, one hundred twenty-five".