260105100025 has 9 divisors (see below), whose sum is σ = 322533486093. Its totient is φ = 208082040000.

The previous prime is 260105100011. The next prime is 260105100037. The reversal of 260105100025 is 520001501062.

The square root of 260105100025 is 510005.

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

It can be written as a sum of positive squares in 4 ways, for example, as 110487765609 + 149617334416 = 332397^2 + 386804^2 .

It is not a de Polignac number, because 260105100025 - 2¹³ = 260105091833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 260105099969 and 260105100005.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2499025 + ... + 2601025.

Almost surely, 2^260105100025 is an apocalyptic number.

260105100025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

260105100025 is the 510005-th square number.

260105100025 is the 255003-rd centered octagonal number.

It is an amenable number.

260105100025 is a deficient number, since it is larger than the sum of its proper divisors (62428386068).

260105100025 is an frugal number, since it uses more digits than its factorization.

260105100025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204012 (or 102006 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 260105100025 its reverse (520001501062), we get a palindrome (780106601087).

The spelling of 260105100025 in words is "two hundred sixty billion, one hundred five million, one hundred thousand, twenty-five".