2556064 has 24 divisors (see below), whose sum is σ = 5751648. Its totient is φ = 1095360.

The previous prime is 2556061. The next prime is 2556067. The reversal of 2556064 is 4606552.

It is an interprime number because it is at equal distance from previous prime (2556061) and next prime (2556067).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (2556061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5482 + ... + 5929.

It is an arithmetic number, because the mean of its divisors is an integer number (239652).

2^2556064 is an apocalyptic number.

It is an amenable number.

2556064 is an abundant number, since it is smaller than the sum of its proper divisors (3195584).

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

2556064 is a wasteful number, since it uses less digits than its factorization.

2556064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428 (or 11420 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2556064 is about 1598.7695268549. The cubic root of 2556064 is about 136.7279307587.

The spelling of 2556064 in words is "two million, five hundred fifty-six thousand, sixty-four".