2556590 has 8 divisors (see below), whose sum is σ = 4601880. Its totient is φ = 1022632.

The previous prime is 2556577. The next prime is 2556607. The reversal of 2556590 is 956552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127820 + ... + 127839.

It is an arithmetic number, because the mean of its divisors is an integer number (575235).

2^2556590 is an apocalyptic number.

2556590 is a deficient number, since it is larger than the sum of its proper divisors (2045290).

2556590 is a wasteful number, since it uses less digits than its factorization.

2556590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255666.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 2556590 is about 1598.9340199020. The cubic root of 2556590 is about 136.7373089745.

The spelling of 2556590 in words is "two million, five hundred fifty-six thousand, five hundred ninety".