2506261 has 8 divisors (see below), whose sum is σ = 2579040. Its totient is φ = 2434608.

The previous prime is 2506253. The next prime is 2506277. The reversal of 2506261 is 1626052.

2506261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506261 - 2³ = 2506253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6115 + ... + 6511.

It is an arithmetic number, because the mean of its divisors is an integer number (322380).

2^2506261 is an apocalyptic number.

It is an amenable number.

2506261 is a deficient number, since it is larger than the sum of its proper divisors (72779).

2506261 is a wasteful number, since it uses less digits than its factorization.

2506261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2506261 is about 1583.1174940604. The cubic root of 2506261 is about 135.8340861698.

The spelling of 2506261 in words is "two million, five hundred six thousand, two hundred sixty-one".