2563892 has 6 divisors (see below), whose sum is σ = 4486818. Its totient is φ = 1281944.

The previous prime is 2563877. The next prime is 2563901. The reversal of 2563892 is 2983652.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 414736 = 1466^2 + 644^2 .

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 polite number, since it can be written as a sum of consecutive naturals, namely, 320483 + ... + 320490.

It is an arithmetic number, because the mean of its divisors is an integer number (747803).

2^2563892 is an apocalyptic number.

It is an amenable number.

2563892 is a deficient number, since it is larger than the sum of its proper divisors (1922926).

2563892 is a wasteful number, since it uses less digits than its factorization.

2563892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640977 (or 640975 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 2563892 is about 1601.2157880810. The cubic root of 2563892 is about 136.8673659066.

The spelling of 2563892 in words is "two million, five hundred sixty-three thousand, eight hundred ninety-two".