2025262721 has 4 divisors (see below), whose sum is σ = 2027425092. Its totient is φ = 2023100352.

The previous prime is 2025262697. The next prime is 2025262741. The reversal of 2025262721 is 1272625202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32890225 + 1992372496 = 5735^2 + 44636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2025262721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2025262741) 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, 1079780 + ... + 1081653.

It is an arithmetic number, because the mean of its divisors is an integer number (506856273).

Almost surely, 2^2025262721 is an apocalyptic number.

It is an amenable number.

2025262721 is a deficient number, since it is larger than the sum of its proper divisors (2162371).

2025262721 is an equidigital number, since it uses as much as digits as its factorization.

2025262721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162370.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2025262721 is about 45002.9190275475. The cubic root of 2025262721 is about 1265.2037085430.

Adding to 2025262721 its reverse (1272625202), we get a palindrome (3297887923).

The spelling of 2025262721 in words is "two billion, twenty-five million, two hundred sixty-two thousand, seven hundred twenty-one".