260025861 has 32 divisors (see below), whose sum is σ = 376012800. Its totient is φ = 159445440.

The previous prime is 260025853. The next prime is 260025877. The reversal of 260025861 is 168520062.

It is not a de Polignac number, because 260025861 - 2³ = 260025853 is a prime.

It is a super-2 number, since 2×260025861² = 135226896777582642, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260025841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179980 + ... + 181418.

It is an arithmetic number, because the mean of its divisors is an integer number (11750400).

Almost surely, 2^260025861 is an apocalyptic number.

It is an amenable number.

260025861 is a deficient number, since it is larger than the sum of its proper divisors (115986939).

260025861 is a wasteful number, since it uses less digits than its factorization.

260025861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 260025861 is about 16125.3173922252. The cubic root of 260025861 is about 638.2715904593.

The spelling of 260025861 in words is "two hundred sixty million, twenty-five thousand, eight hundred sixty-one".