2561692 has 24 divisors (see below), whose sum is σ = 5160960. Its totient is φ = 1089840.

The previous prime is 2561683. The next prime is 2561723. The reversal of 2561692 is 2961652.

2561692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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, 5109 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (215040).

2^2561692 is an apocalyptic number.

It is an amenable number.

2561692 is an abundant number, since it is smaller than the sum of its proper divisors (2599268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2561692 is a wasteful number, since it uses less digits than its factorization.

2561692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 679 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 2561692 is about 1600.5286626612. The cubic root of 2561692 is about 136.8282074228.

The spelling of 2561692 in words is "two million, five hundred sixty-one thousand, six hundred ninety-two".