2527661 has 4 divisors (see below), whose sum is σ = 2551392. Its totient is φ = 2503932.

The previous prime is 2527643. The next prime is 2527673. The reversal of 2527661 is 1667252.

2527661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2527661 - 2⁶ = 2527597 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 (2527061) 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 3 ways as a sum of consecutive naturals, for example, 11705 + ... + 11918.

It is an arithmetic number, because the mean of its divisors is an integer number (637848).

2^2527661 is an apocalyptic number.

It is an amenable number.

2527661 is a deficient number, since it is larger than the sum of its proper divisors (23731).

2527661 is a wasteful number, since it uses less digits than its factorization.

2527661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23730.

The product of its digits is 5040, while the sum is 29.

The square root of 2527661 is about 1589.8619436920. The cubic root of 2527661 is about 136.2196026794.

The spelling of 2527661 in words is "two million, five hundred twenty-seven thousand, six hundred sixty-one".