2291302827025 has 27 divisors (see below), whose sum is σ = 2864309159739. Its totient is φ = 1818262446000.

The previous prime is 2291302826933. The next prime is 2291302827041. The reversal of 2291302827025 is 5207282031922.

The square root of 2291302827025 is 1513705.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 824869017729 + 1466433809296 = 908223^2 + 1210964^2 .

It is not a de Polignac number, because 2291302827025 - 2¹¹ = 2291302824977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 991475620 + ... + 991477930.

Almost surely, 2^{2291302827025} is an apocalyptic number.

2291302827025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2291302827025 is the 1513705-th square number.

2291302827025 is the 756853-rd centered octagonal number.

It is an amenable number.

2291302827025 is a deficient number, since it is larger than the sum of its proper divisors (573006332714).

2291302827025 is an frugal number, since it uses more digits than its factorization.

2291302827025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4894 (or 2447 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

Adding to 2291302827025 its reverse (5207282031922), we get a palindrome (7498584858947).

The spelling of 2291302827025 in words is "two trillion, two hundred ninety-one billion, three hundred two million, eight hundred twenty-seven thousand, twenty-five".