2079450521 has 4 divisors (see below), whose sum is σ = 2097852852. Its totient is φ = 2061048192.

The previous prime is 2079450487. The next prime is 2079450547. The reversal of 2079450521 is 1250549702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1250549702 = 2 ⋅625274851.

It can be written as a sum of positive squares in 2 ways, for example, as 401401225 + 1678049296 = 20035^2 + 40964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2079450521 is a prime.

It is a super-2 number, since 2×2079450521² = 8648228938574342882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2079452521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9200996 + ... + 9201221.

It is an arithmetic number, because the mean of its divisors is an integer number (524463213).

Almost surely, 2^2079450521 is an apocalyptic number.

It is an amenable number.

2079450521 is a deficient number, since it is larger than the sum of its proper divisors (18402331).

2079450521 is a wasteful number, since it uses less digits than its factorization.

2079450521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18402330.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 2079450521 is about 45600.9925440225. The cubic root of 2079450521 is about 1276.3884443570.

The spelling of 2079450521 in words is "two billion, seventy-nine million, four hundred fifty thousand, five hundred twenty-one".