2556094 has 4 divisors (see below), whose sum is σ = 3834144. Its totient is φ = 1278046.

The previous prime is 2556091. The next prime is 2556101. The reversal of 2556094 is 4906552.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639022 + ... + 639025.

It is an arithmetic number, because the mean of its divisors is an integer number (958536).

2^2556094 is an apocalyptic number.

2556094 is a deficient number, since it is larger than the sum of its proper divisors (1278050).

2556094 is a wasteful number, since it uses less digits than its factorization.

2556094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278049.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2556094 is about 1598.7789090428. The cubic root of 2556094 is about 136.7284656726.

The spelling of 2556094 in words is "two million, five hundred fifty-six thousand, ninety-four".