2051500079 has 4 divisors (see below), whose sum is σ = 2051821200. Its totient is φ = 2051178960.

The previous prime is 2051500069. The next prime is 2051500117. The reversal of 2051500079 is 9700051502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2051500079 - 2²⁰ = 2050451503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051500069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150779 + ... + 163820.

It is an arithmetic number, because the mean of its divisors is an integer number (512955300).

Almost surely, 2^2051500079 is an apocalyptic number.

2051500079 is a deficient number, since it is larger than the sum of its proper divisors (321121).

2051500079 is an equidigital number, since it uses as much as digits as its factorization.

2051500079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321120.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2051500079 is about 45293.4882626631. The cubic root of 2051500079 is about 1270.6438711268.

The spelling of 2051500079 in words is "two billion, fifty-one million, five hundred thousand, seventy-nine".