2555899 has 16 divisors (see below), whose sum is σ = 2933280. Its totient is φ = 2211840.

The previous prime is 2555897. The next prime is 2555911. The reversal of 2555899 is 9985552.

It is a cyclic number.

It is not a de Polignac number, because 2555899 - 2¹ = 2555897 is a prime.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (162000) is a multiple of the sum of its prime divisors (270).

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13147 + ... + 13339.

It is an arithmetic number, because the mean of its divisors is an integer number (183330).

2^2555899 is an apocalyptic number.

2555899 is a deficient number, since it is larger than the sum of its proper divisors (377381).

2555899 is a wasteful number, since it uses less digits than its factorization.

2555899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270.

The product of its digits is 162000, while the sum is 43.

The square root of 2555899 is about 1598.7179238377. The cubic root of 2555899 is about 136.7249886579.

It can be divided in two parts, 255 and 5899, that multiplied together give a triangular number (1504245 = T₁₇₃₄).

The spelling of 2555899 in words is "two million, five hundred fifty-five thousand, eight hundred ninety-nine".