2025339721 has 8 divisors (see below), whose sum is σ = 2076705864. Its totient is φ = 1974460800.

The previous prime is 2025339697. The next prime is 2025339733. The reversal of 2025339721 is 1279335202.

It can be written as a sum of positive squares in 4 ways, for example, as 272745225 + 1752594496 = 16515^2 + 41864^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2025339721 - 2⁹ = 2025339209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025339821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113380 + ... + 130021.

It is an arithmetic number, because the mean of its divisors is an integer number (259588233).

Almost surely, 2^2025339721 is an apocalyptic number.

It is an amenable number.

2025339721 is a deficient number, since it is larger than the sum of its proper divisors (51366143).

2025339721 is a wasteful number, since it uses less digits than its factorization.

2025339721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243611.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 2025339721 is about 45003.7745194778. The cubic root of 2025339721 is about 1265.2197425864.

The spelling of 2025339721 in words is "two billion, twenty-five million, three hundred thirty-nine thousand, seven hundred twenty-one".