2555390 has 16 divisors (see below), whose sum is σ = 4698432. Its totient is φ = 1000224.

The previous prime is 2555363. The next prime is 2555429. The reversal of 2555390 is 935552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2249 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (293652).

2^2555390 is an apocalyptic number.

2555390 is a deficient number, since it is larger than the sum of its proper divisors (2143042).

2555390 is a wasteful number, since it uses less digits than its factorization.

2555390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5491.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 2555390 is about 1598.5587258528. The cubic root of 2555390 is about 136.7159119248.

The spelling of 2555390 in words is "two million, five hundred fifty-five thousand, three hundred ninety".