2600261 has 4 divisors (see below), whose sum is σ = 2663724. Its totient is φ = 2536800.

The previous prime is 2600251. The next prime is 2600267. The reversal of 2600261 is 1620062.

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 244036 + 2356225 = 494^2 + 1535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600261 - 2¹⁰ = 2599237 is a prime.

It is a super-2 number, since 2×2600261² = 13522714536242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600267) 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, 31670 + ... + 31751.

It is an arithmetic number, because the mean of its divisors is an integer number (665931).

2^2600261 is an apocalyptic number.

It is an amenable number.

2600261 is a deficient number, since it is larger than the sum of its proper divisors (63463).

2600261 is an equidigital number, since it uses as much as digits as its factorization.

2600261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63462.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2600261 is about 1612.5324802930. The cubic root of 2600261 is about 137.5114877454.

The spelling of 2600261 in words is "two million, six hundred thousand, two hundred sixty-one".